... :0.25KW SJ single screw extruder BEST Quality!! SJ Series PP PE PPR Single Screw Extruder ApplicationThe ... film,pipe,rod,plate,thread,cable insulating layer,hollow product.It is also used ofr ... machine has advantages,such as advanced desin,high output,good plasticification,low energy consumption, ... can effectively protect the reduction gearbox from extrusion unit overload dangers. 2.water-cooling system ...