1. PVC plastic mould injection 2. 15 years experience 3. mould manufacture ... , deflation valves mould, radiator valve mould, ball valve mould, water tape mould, elbow pipe fitting mould, tee pipe fitting mould, reduce ... and sewerage pipe fitting mould, etc., made of ABS, U-PVC, C-PVC, PP-R, PE, PE-RT, POM and other material ...