... of the pipes ,such as PVC ,PE, ABS ,PU PP-R etc 1). PVC groove pipe extrusion line is consist of twin conical ... with corresponding screw and mould ,to produce UPVC grooveplastic pipe in different diameters , 2) . it developed with ... use imported famous brand part. The whole product line has many advanced characters, such as high output, ... and the size of the product . PVC groove pipe extrusion line