... -plastic. Can be combined with appropiate auxiliary machines single screw extruding machine datas:1. AC motor, hard-face-of-tooth ... ,made through nitriding treatment, depth of nitriding for screw is 0.5-0.7mm, rigidity(HV) 800-950,roughness ... the surface 0.8. depth of nitriding for screw is 0.5-0.7mm, rigidity(HV) 940.3. ... H)120-140180-200320-370420-470700-750900-1000 single screw extruding machine