Wafer Butterfly Valve, Flanged Butterfly Valve, Lug Type Butterfly Valve manufacturer / supplier in China, offering High - Quality Stainless Steel Pneumatic Actuated with Excellent Sealing L Type Butterfly Valve for General Industrial Use, OEM ODM PTFE PFA Coaed Disc CF8 CF8m SS304 SS316 Wcb Bronze API ANSI DIN JIS BS Butterfly Valve for Filtered Water, DN50~DN600 Manual Handle /Electric Actuated/ Pneumatic Actuated Lt Butterfly Valve and so on.