... 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 mould, water tap mould, elbow ... . flange moulds, bypass bend mould, flexible connector mould, water supply mould and sewerage pipe fitting mould, etc., made of ABS, U-PVC, C-PVC, PP ...