... PP, HIPS, GPPS, PE plastic products.The screw of the extrusion machine uses big ratio of length and diameter, its formed effect is ... nice, the thickness of the flake board is equal and the running speed is ... ,PEPP,HIPS,GPPS,PEScrew Diameter90 mm105 mm110 mmL/D ratio of screw1:33:001:33:001:33:00Sheet width660mm660mm700mmSheet Thickness0.3 ...