... sealing pipes, .making plastic tanks, .geomembrane,PVC,PE.PP Hand Screw Extrudergeomembrane,PVC,PEAdvantage:Absorbed the technology from similar products of ... intergrated design is adopted for the pre-heating air and screw extruder. The welding quality is good and the mould design ... .Tachnical Datas:ModleTSD-BVoltage220VExtrusion rate1020WHeat Blast3400WWelding speed3kg/hWeight5kg Hand Screw Extruder