... machine for making the plastic sheet,such as PP,GPPS,HIPS,PS. Advantages:>>>>> a. The screw ... the temperature of the roller's surface uniform; e. Single layer plastic sheet, is based on the different uses of products with different ... character of plastic combination ,such as PP,GPPS,HIPS,PS. Technique specifications:plasitc sheet extrusion machine Width of sheet710mmThickness ...