- Zhejiang Cotech Valve Co., Ltd(once Named Zhejiang Kotech Valve Co., Ltd))
- Dual Plate Wafer Check Valve.
- Address:Chiyan industrial park,Qingtian Zhejiang
- Xiamen Special Valve Co., Ltd.
- butterfly valve, ball valve, gate valve, globe valve, check valve, y type strainers, basket strainers, plug valve, knife gate valve, bellows seal valve, wafer dual plate check valve, steam trap.
- Address:19F,Huamin building,Hubin east road, xiamen, fujian, China
- Tianjin Water-seal Valve.Co., Ltd
- butterfly valves, concentric & flange bfv, pneumatic & electric bfv, dual plate wafer check valve, etc.,Wafer Butterfly Valve,Butterfly Valve.
- Address:No. 228,Yanshan Road,Tanggu,Tianjin,China, Tianjin, Tianjin, China
- ASTECH VALVE CO., LTD.
- dual plate wafer check valve, ball valve, butterfly valve, cast iron valve, industrial valve, sight glass, expansion joint, diaphragm valve, oil free products,AVC.
- Address:No.24, Lane 1441, He-Ping Rd., Tao-Yuan, Taiwan
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