PPR pipes are smooth to outside and inside, standard caliber, no distortion.The sizes are from 1/2" ... (PPR / PVC fittings), plastics ball valves, plastic taps and, PPR pipes mould, ect.If you can give us a chance to ... cooperate.Best Regards,Zhuoxin Group. 1.The sizes of PVC pipes 2.Our Business Steps:1)Communication: customers interest in our ...