... Dia30mm,Dia35mm,Dia40mm,Dia50mm,Dia75mm,Dia110mm,Dia160mm,Dia200mm,Dia250mm. 1)Plastic pipe for urban/rural Drainage2)Material: UPVC3)Available for Dia32mm, ... year.We have been in this plastic industry for 13 yearsSteps of Making Mould and Products 1.drawings or samples ... customer's specifications to build the mould. Before making the mould, we'll send mould design for customer's approval6.Sample ...