... a Chinese factory good at making fine bubble diffuser part moulds.We have more than 16 years ... We can provide you stable quality, faster delivery and clear communications.2. We can provide various of ... C-PVC, PP-R, PE, PE-RT, POM and other material.3. We can provide moulds like elbow, ... reduce, cap, union, flange, flexible connector, water supply and sewerage pipe fitting moulds, etc. made of ABS, U- ...