... Pipe Extrusion Line, Pipe Making Machine, Plastic Pipe Production Line consists of conical (parallel) double CPVC Pipe Extrusion Line, Pipe Making Machine, Plastic Pipe Production Line SJPGZ series plastic pipe extrusion line is specializing in manufacturing PVC ... of the clients, the company will equip the extrusion line with specific devices to form pipe production lines of inner-wall spiral pipes, ...