... , WCC 2) Precess: casting and precision maching 3) Usage: butterfly valve part OEM Butterfly valve Details:1) This product is among our casting parts ... .3) Usage: it is mainly used as a part of butterfly valve.4) Material for this part is WCC and WCB.5 ... , DI, WCBDiscDI, ALB, CF8M, 1.4529 Stem416, 420, 431SeatNBR, EPDMSuitable temperature-10°C~80°CSuitable mediumfresh water, sewage, sea water, food ...