PVC production line 1.By Siemens PLC control 2.Speed of Screw:1~35rpm Custom Design PVC production line SJSZ series conical twin screw extruder mainly composed of barrel screw, gear transmission system, quantitative feeding, vacuum exhaust, heating, cooling and electrical control components Etc. Products: of PVC plastic pipes, profiles, sheets, plates, boards, bars, palletizing and granulation. ...