Wen zhou kesai valve co.,ltd start to deal with business on valves in 1984(the previous name is yongjia changcheng pump factory),then be named zhejiang datian machine co., ltd in 1995,due to the expanded scope of goods, we set up a new sub company wen zhou kesai valve co.,ltd from zhejiang datian machine co.,ltd, with brand “Coosai” in May,2006,and pass the auditing of ISO9000:2000 quanlity management system certificate in October, CE(PED) certificate in December this year, then psss CE certificate of electric actuator in May,2007, API6D certificate in July,2007.