... valve mould, check valve mould, membrane valve mould, bottom valve mould, gate valve mould, locking valve mould, deflation valves mould, radiator valve mould, ball valve ... and other material. Types are socket, thread, steel, brass, other metal, male, female, three way, cross, ... methods, Electric-Discharge Machining, Cutting by Spark Erosion with Traveling- Wire Electrodes, Mold Surface Finishing and ...