Butterfly Valve, Wafer Check Valve, Resilient Seat Gate Valve manufacturer / supplier in China, offering Ductile Cast Iron Ggg40 Ggg50 A536 A395 Ci Di Rubber Seat Wedge Sluice Gate Valve Square Head Resilient Seated with Top Cap for Drinking/Portable Water, Manual Control Wafer Butterfly Valve Pn6/Pn10/Pn16/ANSI125/ASME150/as Table D/Table E/JIS5K/JIS10K/JIS16K /JIS20K, A395 A536 Pn10/Pn16 Class150 150lb Flow Control Wafer Butterfly Valve with Replaceable Rubber EPDM/NBR/FKM/FPM and so on.