Strega - Coffee machine Bezzera - Free user manual and instructions
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| Product type | Manual espresso machine |
| Brand | Bezzera |
| Model | Strega |
| Dimensions (L x D x H) | 330 x 450 x 710 mm |
| Net weight | 28 kg (version S) / 31 kg (version R) |
| Power supply | 220-240V~ 50-60Hz or 110-120V~ 50-60Hz |
| Rated power | 1450-1650 W |
| Heating element | 1250-1450 W |
| Boiler capacity | 2.0 L |
| Tank capacity (version S) | 4.0 L |
| Operating pressure | 1-1.2 bar (boiler); 12 bar (heat exchanger) |
| Group type | Manual lever |
| Number of groups | 1 |
| Main functions | Espresso, steam, hot water |
| Steam wand | Yes, with swivel nozzle |
| Hot water dispenser | Yes |
| Pressure gauge | Yes, for boiler pressure |
| Indicator lights | Power (green) and safety (red) |
| Safety thermostat | Yes, with RESET button |
| Connections version R | Water G 3/8", drainage Ø10 mm |
| TOP version | Tank or mains (convertible) |
| Housing material | Stainless steel and painted steel |
| Daily maintenance | Clean portafilter, steam wand, grid, drip tray |
| Warranty | 1 year (parts and labor) |
| Included accessories | Portafilter, single and double shot filters, hex key, small watering can |
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USER MANUAL Strega Bezzera
Warning! Important safety warnings!
Caution! Important warnings for the correct use of the machine
© 2007 G. BEZZERA - All rights reserved. ORIGINAL INSTRUCTIONS
This publication or any part of it cannot be reproduced, stored in any kind of processor, transmitted, transcribed or translated in any common or software language, in any form or with any means be they electronic, mechanical, magnetic, optical, chemical, manual or other, without the previous written authorisation of G. BEZZERA.
G. BEZZERA warranty - Validity terms
The provided products are covered by warranty due to defects of material and/or manufacturing for a period of 12 months from the invoicing date. If the machine is outside the warranty period, it will not be possible to avail of it. Warranty will be granted only after submission of the original purchase document (sale receipt or invoice) attesting the purchase date.
In case of malfunction attributable to manufacturing defects, request the warranty intervention directly to the authorized G. BEZZERA dealer where the machine has been purchased, indicating the malfunction and the serial number indicated in the user manual or on the machine frame.
Goods returns which may reach the authorized dealer without the above serial number will void the warranty, since machine traceability data would not be available.
In case of return, equipment delivery is care of the customer. Handle with care and reposition the machine inside the original packing, to avoid further damage during transport. We remind that, in order to grant the warranty, the goods shall be mandatorily returned in the original packing.
The cost and the risks of machine transport to the dealer shall be borne by the customer.
Each machine is provided with an anti-tampering seal, which makes impossible to open the machine without breaking or damaging the seal. The warranty shall never be granted in case of machine with removed or damaged seal.
Warranty will be granted only after verification by the G. BEZZERA specialized, authorized technician, who will evaluate whether it is possible to repair the machine on site or it is necessary to ship it to the manufacturing plant. Any tampering with the machine by non authorized personnel shall void the warranty.
If the machine is received with defective or manifestly damaged packing, the customer shall promptly notice the distributor. Do not collect the goods and especially do not try to operate the machine.
The warranty explicitly does not include the defects which:
- are attributable to the use of non genuine accessories and spare parts
- are caused by thunderbolts, humidity, fire, improper power supply voltage, as well as any other damage not objectively attributable to the manufacturer.
- are ascribable to tampering with the power supply cable
- are not ascribable to manufacturing faults, but rather to the normal wear of the materials due to the proper use of the equipment (notably, calcification and wear of the parts subject to wear, e.g. seals, grinding disks)
- occur due to wrong use, negligence or carelessness in use or care (e.g. in case of non observance of the user instructions of the equipment)
- are caused by wrong installation, maintenance, or repair by non authorized persons or by damaging during transport.
For further information, or in case of issues not taken into account in the following instructions, refer to the authorized service centres.
Conditions de validité de la garantie G. BEZZERA
5 - USO DELLA MACCHINA
5 - USO DELLA MACCHINA
3.1 Description of working cycle 25
3.2 Description of commands 25
3.3 Technical data 25
4 - MACHINE INSTALLATION
4.1 Warnings 26
4.2 Preparation of the plant for installation 26
4.2.1 Connection to the electrical network 26
4.2.2 Connection to the water network (R/TOP-DIRECT WATER CONNECTION version). 26
4.2.3 Connection to the drain (R version) 26
4.3 Equipotential connection 26
4.4 Group lever assembly 26
4.5 "TOP" VERSION 26
4.5.1 "TOP-DIRECT WATER CONNECTION" MODE 27
4.5.2 "TOP-TANK" MODE 27
5 - USE OF THE MACHINE
5.1 First machine start and water loading in the boiler 27
5.2 Heating 27
5.3 Preparing coffee 27
5.4 Steam distribution 28
5.5 Drawing hot water 28
5.6 Turning off the machine 28
6 - MAINTENANCE
6.1 Safety rules 28
6.2 Cleaning the machine 29
6.3 Safety thermostat - Manual rearming 29
6.4 Correct product disposal 29
7 - TROUBLE SHOOTING
Problem/Diagnostics/Solution/Advices 30
1 - WARNINGS
1.1 General warnings
- The electric and water systems must be set up carefully by the user, according to what indicated in chapter 4 of this "Machine installation" booklet.
- The installer cannot absolutely modify the existing system set up by the user.
- This instructions booklet represents an integral part of the machine and must be read carefully by the user prior to use the machine.
- Store the booklet for future consultations.
- The machine must be delivered without water inside the boiler, in order to avoid possible damages caused by frost.
- Set up the ground connections of the electric system.
- Do not touch the machine with humid and/or wet hands and feet.
- Do not use the machine bare feet.
- Do not connect the feeder cable to movable extension cords and similar.
- Do not disconnect the machine from the electrical power by pulling the electrical power cable.
- Do not use the machine if the feeder cable is wound up.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
- To avoid water infiltrations inside the machine, place the cups on the cup warmer with the hollow side facing the top.
- The machine is not intended for outdoor use.
- The following symbol indicates the danger of burns.
1.2 Foreseen use
The STREGA espresso coffee machine was de
signed to make espresso coffee, produce hot water and prepare tea, camomile tea and other infusions, produce steam and heat drinks (milk, hot chocolate, cappuccino, punch etc.).
This machine was designed only and exclusively for the uses as above.
All other uses must be considered improper and therefore forbidden by the manufacturer. The manufacturer cannot be held responsible for damage caused by the improper use of the espresso coffee machine.
2 - TRANSPORT
2.1 Packing
The STREGA espresso coffee machine is wrapped in polyurethane foam and then packed in cardboard boxes.
Warnings:
- After removing the machine from the packing, check that it is whole and make sure that it has all fittings.
- Packing materials must not be left within children's reach and must be disposed of at the correct dumps.
- If the machine is found to be damaged or some parts are missing, do not use the machine and inform the local dealer immediately.
- The machine is delivered with the group lever disassembled; for assembly refer to chapter 4.4 of this booklet
2.2 Moving the machine
The espresso coffee machine can be moved using a forklift truck, transport pallets or manually.
2.3 Storage
The correctly packed machine must be stored in a dry environment, within a temperature range of +5^ to +30^ and with relative humidity of maximum 70% .
A maximum of four boxes can be piled on top of one another.
3 - DESCRIPTION OF MACHINE
3.1 Description of working cycle
S/R/TOP Versions
The line pressure of the water directly coming from the water supply line (VERSION R) or, by means of a pump, from the tank located on the rear of the machine (VERSION S - TOP-TANK) or from the water supply line (VERSION TOP-DIRECT WATER CONNECTION), enables to load the boiler and, through a relief valve set to 12 bar (1.2MPa) , the exchanger load. The water in the boiler, heated by a resistance, warms the water in the exchanger. Lowering the group lever, the water is directly pumped from the exchanger to the group chamber; when the group lever is released, coffee is brewed.
3.2 Description of commands (Fig. 01 - Fig. 09)
1 Main switch
2 Brewing coffee lever
3 Hot Water Nozzle
4 Water Inlet Pipe (R/TOP version)
5 Power Supply Cable
6 Brewing Group
7 Filter Holder
8 Steam Nozzle
9 Steam tap
10 Hot water tap
11 Power Light
12 Safety light
13 Drain pipe (R version)
14 Boiler's gauge
15 2 cup filter
16 1 cup filter
3.3 Technical data (Fig. 02)
| Power Supply V~/Hz 220 - 240V~ / 50-60Hz 110 - 120V~ / 50-60Hz | ||
| Resistance V~ 220 - 240 110 | ||
| Nominal power W 1450 - 1650 1550 | ||
| Resistance | W 1250 - 1450 1350 | |
| Boiler | lt | 2,0 |
| Tank (S) | lt | 4,0 |
| Width "A" | mm | 330 |
| Depth "B" mm | 450 | |
| Height "C" | mm | 710 |
| Net Weight | kg | 28 (S version) = 31 (R version) |
| Gross Weight (box) | kg | 30.5 (S version) = 33.5 (R version) |
| Nipple for water supply (R) | G 3/8" | |
| Drain Connector Diameter (R) | mm | 10 |
4 - MACHINE INSTALLATION
4.1Warnings
Installation must be carried out by qualified staff, according to the instructions supplied by the manufacturer and in compliance with applicable Laws.
The machine should be located and installed in a place where the use and maintenance are performed by qualified personnel. Can be used the machine in places used to staff kitchen areas in shops, offices and other working enviroments; farm houses; by clients in hotels, motels and other residential type enviroments; bed and breakfast type enviroments
4.2 Preparation of the plant for installation
Prepare the machine's support on a flat horizontal, dry, smooth, sturdy, stable surface positioned at such a height that the cup warming surface is over 150~cm from the ground.
Do not use water jets, neither perform the installation in places where water jets are used.
In order to guarantee regular operation, the device must be installed in places where the temperature is between +5 and +32^ and the humidity does not exceed 70% .
If the machine is exposed to temperatures below +0^ , proceed as follows:
- ensure that the machine has elapsed 24 hours in a place where temperature is higher than +15^ before turn it on.
The machine is electrically supplied and it needs the following to operate:
- connection to electric network
- connection to water network
- connection to drain circuit.
4.2.1 Connection to the electrical
Warnings:
- The plant must be built in compliance with the current laws in force and be earthed.
The machine must be supplied with an electrical power cable with a fitted plug.
4.2.2 Connection to the water network
(R/TOP-DIRECT WATER CONNECTION version)
Make sure that the water supply installation is con
nected to drinkable water supply with operating pressure ranging from:
0 to 6 bar (0 - 0,6 MPa) "TOP-DIRECT WATER CONNECTION" version
- 2 to 6 bar (0,2 - 0,6 MPa) "R" version
Should the pressure be above 6 bar (0,6 MPa), provide a reducer.
Provide an intercepting tap upstream the machine connection (Fig. 01; pos 4).
A pipe with G3/8'' nipple is provided for the water supply connection.
4.2.3 Connection to the drain (R version)
Connect a rubber pipe (Fig. 01; pos 13) with inner diameter of 10mm to the arranged connector of the machine drain well and join it with the open drain-trap, previously prepared.
The function of this connection, required by some standards, is to prevent the electric potential differences between the masses of the different equipment installed in the same place. This device is provided with a terminal installed under the base to connect an external wire having a rated section in compliance with the current regulations.
4.4 Group lever assembly (Fig. 10)
The machine is delivered with the group lever (A) disassembled. Before use, fully screw the group lever (A) on the joint (B) as indicated in Fig. 10 and if necessary unscrew it until the logo (C) on the handle corresponds with the front of the machine.
Use the Allen wrench (D) supplied with the machine to screw the dowel (E), (supplied as well), locking the group lever (A).
Now the machine is ready for use.
4.5 "TOP" VERSION
The STREGA espresso machine is manufactured as well in the "TOP" version and can be used in TANK or DIRECT WATER CONNECTION mode. By means of a pump, it sends to the boiler and to the exchanger, depending on the version, the water coming from the tank (TANK mode) or from the supply line (DIRECT WATER CONNECTION
mode).
Warnings:
- The STREGApresso machine version "TOP"
is not provided with drain tube (Fig. 01; pos. 13). Periodically check the drain tray and remove the water from it.
- Keep the parts required for transformation to be able to restore, in the future, the TANK or DIRECT WATER CONNECTION mode.
4.5.1 "TOP-DIRECT WATER CONNECTION" MODE
The machine is delivered in TANK mode; to transform it in DIRECT WATER CONNECTION mode, proceed as follows:
- Make sure that the machine is not connected to the power mains and that all its parts are cold.
- Remove the tank (Fig. 12; pos. 1), position the plug with its seals (Fig. 12; pos. 3) fully screwing it and connect the tank probe bypass to the specific tongue located on the tank support (Fig. 12; pos. 2).
- Remove the plug with its seal (Fig. 13; pos. 2) and replace it with the water load tube (Fig. 13; pos. 1) provided, taking care not to damage and/or scratch the any part of the machine.
For connection to the water mains, comply with paragraph 4.2.2 of this booklet.
4.5.2 "TOP-TANK" MODE
It is possible to restore the TANK mode, returning the machine to the original delivery mode, acting as follows:
- Make sure that the water tap is closed and that the machine is not connected to the power mains and that all its parts are cold.
- Remove the water load tube (Fig. 13; pos. 1) and replace it with the plug and its seal (Fig. 13; pos. 2) taking care not to damage and/or scratch any part of the machine.
- Remove the cap with its seals (Fig. 12; pos. 3), disconnect the tank probe bypass cable from the specific tongue located on the tank support (Fig. 12; pos. 2) and reposition the tank (Fig. 12; pos. 1) in its original position.
5 - USE OF THE MACHINE
5.1 First machine start and water loading in the boiler
Turn on the water supply tap (R version)
Pour water into the tank, (S Version) (Fig. 03).
Warnings:
- Use water at ambient temperature
Insert the plug in the electrical socket.
Turn the main switch (Fig. 01; pos. 1) to position 1.
Water is automatically loaded into the boiler.
If the lights remain off after water loading operation, switch off and on the machine until the lights turn on.
5.2 Heating
To ensure that the machine has reached the proper thermal balance between pressure and temperature, when the boiler's gauge (Fig. 01; pos. 14) will indicate a pressure between 1 and 1.2 bar (0.1 - 0.12MPa) open the steam tap (Fig. 01; pos. 9) and exhaust the steam 2 or 3 times in the discharge basin.
The safety light (Fig. 01; pos. 12), if on, points out the machine is in working order; if off, it means that the water level in the tank (S version), in the boiler (R version) is not enough.
Warning:
- A safety device allows to stop the pump after 120 seconds if the water minimum level is not supplied to the boiler. The machine, as alarm signal, turns off the safety light (Fig. 01; pos. 12).
5.3 Preparing coffee
1) Remove the filter holder (Fig. 01; pos. 7) from the supply group.
2) Put the ground coffee into the filter holder, press it and make attention that the filter holder edge is not dirty with coffee.
3) Replace the filter holder in its housing.
4) Lower the group lever grasping it firmly (Fig. 01; pos. 2) up to the lower run end position and wait for full filling of the dispensing group chamber (Fig. 01; pos. 6) until the first drops of coffee are dispensed. Raise the group lever (Fig. 01; pos. 2) accompanying its movement to obtain coffee supply.
5) It is not possible to stop the supply, since it is continuous up to the top end run (the maximum dose of supplied coffee is 75~cc ); when the intended dose is reached, remove the cof-
fee cup.
Caution:
- Operate the lever only if the filter holder is hooked and loaded with coffee (Fig. 11; pos. d).
- Do not remove the filter holder loaded with coffee when the machine is operating.
- Operating the lever group without coffee in the filter holder causes the sudden, uncontrolled return of the group lever to its top end run position due to the force applied by the return springs.
- Operate the group lever only if the machine is on and pressurized.
- Make sure that there is water in the tank, before operating the group lever (Fig. 11; pos. e).
- Do not directly touch the metallic area of the filter holder: danger of burns.
In case of partial filling of the group chamber (power supply outage, faults or inadequate water level in the tank or in the boiler) it is necessary to accompany the group lever, grasping it firmly, up to the top run end position before restoring the correct operation of the machine. - Operate the group lever taking care not to tilt and/or overturn the machine (Fig. 11; pos. c).
- The group lever, being subject to water pressure and to the force applied by the return springs, shall always be accompanied back to its rest position.
- Do not interfere at all with the normal movement of the group lever and keep your head and body far from its operating range (Fig. 11; pos. a - b).
- Do not stay within the operating range of the group lever.
- Operate the group lever only if it is fully screwed (cap. 4.4).
- The standard doses for the filters are 8 grams for one dose and 14 grams for two doses.
5.4 Steam distribution (Fig. 06)
1) To avoid liquids being sucked into the boiler, discharge the steam by turning the tap knob (Fig. 01; pos. 9).
2) Insert the steam nozzle (Fig. 01; pos. 8) in the container of the liquid to be heated.
3) Press down and hold the steam tap knob (Fig. 01; pos. 9), lifting the lever the tap will remain
in open position (Fig. 06). The amount of steam distributed is proportional to the opening of the tap; the more the tap is opened, the more steam will be distributed.
4) Once steam has been distributed, release knob, remove liquid container and clean the steam nozzle immediately with a damp cloth to remove heated liquid residues.
Warning:
Do not touch the steam nozzle directly as it is hot.
5.5 Drawing hot water
1) Place the water container under the nozzle (Fig. 01; pos. 3).
2) Press down and hold the water tap knob (Fig. 01; pos. 10) to draw the amount of water required.
3) Once water has been distributed, release the knob.
Warning:
Do not touch the water distributor tap directly as it is hot.
5.6 Turning off the machine
1) Turn the main switch (Fig. 01; pos. 1) to position "0" and check that the green light has turned off. (Fig. 01; pos. 11)
2) Turn off the intercepting water tap (R version).
6 - MAINTENANCE
To allow the machine to work correctly, follow the maintenance instructions provided below.
6.1 Safety rules
Do not subject the machine to water jets. Disconnect the machine from the electrical power by turning the electrical power network omnipolar knife-switch lever to the resting position 0. Remove the plug and close the water interception tap before carrying out maintenance and/or cleaning work. If the machine is malfunctioning, do not attempt to repair it alone and call the technical assistance service immediately. If the electrical power cable has been damaged, turn off the machine immediately, turn off the water and call the technical as
sistance service. Do not replace it alone. Carry out cleaning/maintenance when the machine is cold, preferably wearing protective gloves.
6.2 Cleaning the machine
Warnings: For the best results and in compliance with current regulations, change the water contained in the boiler and pipings at every daily startup of the machine.
These advices are indicative, the maintenance and cleaning schedules depend on the use of the machine.
After each use
1) Clean the steam nozzle.
2) Clean the filter holder and the filters.
Daily
1) Clean the cup holding grid and the drain basin.
2) Clean the body.
3) Clean the group's gasket with the brush supplied.
4) 'Immerse the filter holder and the filters in hot water for a few minutes to dissolve the grease of the coffee, use a cloth or sponge to remove it.
For washing and cleaning operations, do not use solvents, detergents or abrasive sponges but only specific products for coffee machines. Wash the body using a cloth soaked in water and/or neu
tral detergents, and dry the surfaces well prior to connect the machine to the electric line again. Use water to wash the cup holding grid and the drain basin.
Use water and neutral detergents to clean the tank after removing it. When finished rinse thoroughly. Replace the tank and insert the silicon tubes making sure that the suction pipe touches the bottom.
6.3 Safety thermostat - Manual re- arming
Warning! The operation described below is only relevant to an installing technician who is authorised by the manufacturer.
While the machine is working, the boiler resistance may overheat and, cutting off power, sets off the safety thermostat that prevents any further damage to the boiler. To restore normal operations, resolve the malfunction that triggered the safety thermostat
and restore normal conditions by pressing the red button (RESET) (Fig. 08).
6.4 Correct product disposal
(electrical and electronic waste)
(Applicable in the European Union countries and those countries with separate waste collection systems).
The sign carried on the product or on its documentation indicates that the product must not be disposed of with other domestic waste at the end of its life cycle. To avoid any damage to the environ- er to health, caused by unsuitable waste the user is asked to separate this product or types of waste and to recycle it respons- 1dp the sustainable recycling of material
Domestic users are invited to contact the dealer where the product was purchased or the local office in charge of this matter for all the information relating to separate waste collection and recycling for this type of product.
Company users are invited to contact their own supplier to check the terms and conditions of the purchase contract.
This product must not be disposed of together with other commercial waste.
7 - TROUBLE SHOOTING
Problem Diagnostics/Solution Advices
| No distribution of steam from specific tube | The steam tube nozzle is blocked; unblock Clean the steam spout after it using a pin. This problem is linked to each use. the fact that the tip of the nozzle enters the milk. |
Leaks from filter holder Possible causes:
1 - The seal under the cup is worn or encrusted.
2 - The filter holder is placed incorrectly on the unit.
Difficulty in placing the filter holder on the attachment ring
The problem may be caused by the excessive dose of coffee in the filter holder.
Abnormal position of filter holder once placed on the unit.
Once locked onto the unit, the filter holder handle is further to the right than usual. The seal under the cup is worn.
Coffee flow is less than usual
Coffee comes out in drops, distribution time is too long and the quality of the coffee is not good, it has a dark cream. Possible causes:
1 - The coffee has been ground too finely.
2 - The coffee in the filter holder is pressed down too hard.
3 - Too much coffee has been placed in the filter holder.
4 - The unit shower is blocked.
5 - The filter in the filter holder is blocked.
6 - The pressure supplied by the pump is low (< 9 bar - 0.9 MPa) or null.
Clean with the brush provided.
If the problem should arise again, call a specialised technician.
Reduce the amount of coffee in the filter holder. (Standard doses for filters are 6 grams per dose).
Call a specialised technician to replace the seal under the cup.
In cases 1-2-3, the problem can be solved by adjusting the grinding and/or dosage of the coffee.
In cases 4-6, a technician must be called.
In case 5, clean the filter or replace it.
Problem Diagnostics/Solution Advices
| Coffee flow is excessive The coffee is distributed too quickly and the cream is lighter than usual. Possible causes: 1 - The coffee has been ground too coarsely. 2 - The coffee in the filter holder is not pressed down enough. 3 - There is too little coffee in the filter holder. 4 - The pressure supplied by the pump is high (> 10 bar - 1 MPa). | In cases 1-2-3 adjust grind- ing and/or dosing of coffee. In the 4th case, a technician must be consulted. | |
| The coffee supplied is too cold | Possible causes: 1 - The filter holders are cold. 2 - The coffee has been ground too fine- ly. 3 - The machine's water circuit is dirty (limestone). 4 - The boiler's pressure is lower than 0.8 bar (0.08 MPa). | In case 1, keep the filter hold- er assembled on the unit. In case 2, alter the coffee grinding. In cases 3 - 4, call a special- ised technician. |
| The coffee supplied is warm | The coffee supplied is warm if the pres- sure is normal, between 1 and 1.2 bar (0.1 - 0.12 MPa). In this case, the pres- sure value is not correct. | Call a specialized technician rto check the exhaust valve. Meanwhile, to use the ma- chine, open the steam tap (Fig. 01; pos 9); the boiler's pressure will drop to zero, thus causing the enabling of the resistor and the increase of temperature. Perform this operation daily when turning on the machine. |
| The coffee supplied is too hot | Possible causes: 1 - The boiler's pressure is higher than 1.3 bar (0.13 MPa). 2 - The machine is covered by something that prevents cooling. 3 - The machine was installed in a position that does not allow air circulation | In the 1st case, call a special- ized technician. In cases 2-3 reset the ma- chine's cooling conditions. |
| Deposit the coffee on the bottom of the cup | Possible causes: 1 - The grinding of the coffee is too thin. 2 - The filter holder is dirty inside or the filter is damaged. 3 - The millstones of the grinder are worn out. 4 - The pump's pressure is too high (> 10 bar - 1 MPa). | The 1st case can be solved by adjusting the grinder. In the 2nd case, clean the filter holder or substitute the filter. In cases 3-4 call a techni- cian. |
SOMMAIRE
1 - AVERTISSEMENTS
4.5 Version "TOP" 44
4.5.1 Modus "TOP-NETZ" 45
4.5.2 Modus "TOP-BEHALTER" 45
A工程技术 of a 100% (100%) is used to produce the product. The technology is based on the use of a combination of two different processes, namely, the first step of the production process and the second step of the processing process. The first step is the preparation of the product by using a high temperature process. The second step is the assembly of the product by using a low temperature process.
