... Screw and barrel, screw caps, seat, rings for injection moulding machine Clamping force:25-3200tons Injection capacity:30g-250 Screw and barrel, screw caps, seat, rings for injection moulding machineSingle screw and barrel for injection ... of the surface:Ra 0.4μm Screw straightness: 0.015mm/m Chrome plating ... -proof, heatproof, high-pressure proof and high-speed proofSuitable plastic material: PP ...