ZheJiang Dongya Valve Co.,Ltd located in 551 airport ave WenZhou, with registered capital of 128 million RMB., which is a national high-tech enterprises, the growth star enterprises of ZheJiang Province, designated supplier of China Petrochemical Group and municipal technology research and development center,patent demonstration enterprises, has self-supported import and export right of foreign rade, Wenzhou famous brand product, own 2 patents of invention and  18 utility model patents and it's a both research and develop manufacturing high pressure valve and pipe fittings of science and technology enterprises!