... .: 16-1600mm 2. CE/ ISO9001 pe pipe production line, pe pipe extrusion line pipe extrusion line/HDPE pipe production line 1. Dia. range: 16-1600mm 2. world famous brand ... produce inner wall spiral pipe, inner wall hollow pipe, and core layer foam pipe, it can also produce PP,PE,ABS, PPR,PEX ... , silicon core pipe etc. 5. ...