... demostration Raw material qualilty control Euro-quality & competitive-price SHJ-35 experimental co-rotating twin-screw extruder is used to make ... ,Hardened gear box,radial bearings of NSK7,Diameter of screw 35.6mm,L/D 32-56 variable8,The speed of screw ... control or PLC, PCC control Euro-quality & Competitive-price SHJ-35 laboratory co-rotating twin-screw extruder