... more than 15 years experience about making double ball valve moulds.union ball valve has seven parts.We can make all ... kinds of ball valve mould customer's require. The quotation can be ... valve, water tapes, etc., made of ABS, U-PVC, C-PVC, PP-R, PE, PE-RT, POM and other material ... pipe fitting moulds, etc. made of ABS, U-PVC, C-PVC, PP-R, PE, PE-RT, POM and other ...