... Gas Water Pipe Extrusion Line, Model LSG150/33,Diameter range 400-800mm,Co-extruder model LSJ40/25,Line speed 0.1-0.5m/min. HDPE water gas/water pipe extrusion line designed and ... strength,environmental stress cracking resistance,hot-melt connectivity,and other advantages,it is the first choice of city gas and water transmission pipeline. HDPE Gas Water Pipe Extrusion Line