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1958, foundation of CS

1983, approved to produce high pressure valves for power plant by American electrical organization

1983, awarded permission of high prssure equipents by American GAS organization

1986, accepted by technological high pressure forged valve organization together with Kensel Valve Co., Ltd, Japan

1989, awarded licence to produce new nuclear power products by the ministry of science

1994, awarded certificate of ISO9001 by TUV

May,1997, approved to produce control valves for power plants by American power organization

May, 1999, awarded API6D certificate by API

August, 1999, awarded certificate of new nuclear power quality trustiness firm

October, 2002, awarded certificate of industrial self-control and safety valve by TUV

2002, registered to the Ameraican gas organizations as a pneumatic safety valve vendor

2002, approved to produce nuclear power pneumatic safety valve by American water pressure and nuclear power organization

February, 2009, company name changed as CS VALVE INC.and office moved to California

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