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