... the pipes ,such as PVC ,PE, ABS ,PU PP-R etc 1). PVC groove pipe extrusion line is consist of twin conical ... parts use imported famous brand part. The whole product line has many advanced characters, such as high output, ... product,it is really the first class device in current plastic industry. 3) . what's more , We can ... material formula and the size of the product . PVC groove pipe extrusion line