... 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 advanced ... product,it is really the first class device in current plastic industry. 3) . what's more , We can ... formula and the size of the product . PVC groove pipe extrusion line