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Standard Certificate No. Date of Certification Description
ISO 9001
ISO 14001
K01-1057
KE439
2003.06.17
2005.08.25
Design, Development,
Manufacture and
Activity of Production
ltem
UL/CUL E151837
E151837
E151837
E200987
1994.07.05
2004.10.26
2005.03.07
2000.08.04
Thermostat
Single pressure switch
C.C.I Thermostat
Rotary Switch
VDE 128519
126830
2000.11.22
2000.11.22
Thermostat GNA Type
Thermostat GNF Type
TUV R9937111
R50070247
2001.04.07
2005.09.12
Rotary Switch
Solenoid
 

Type Patent No. Date of Registration Name
Patent 0276486 00.09.29 Method to produce automatic thermostat
0306089 01.08.06 Method to adjust the OFF point of automatic thermostat
0336485 02.04.30 Close typed three-way valve
0336487 02.04.30 Open typed three- way value
0340700 02.04.30 New valve controlling gas and method to produce it
Utility Model Right 115584 97.12.23 Closing/opening device for adjusting the temperature of cool chamber
115585 97.12.23 Damper closing/opening device for controlling the temperature of cool chamber