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Contact Person Ms. Evelyn
Dinghai District, zhoushan, zhejaing
Conical(parallel)Twin Screw Barrel Material : High quality alloy steel depth of nitrogen case : 0.***0.*5mm Hardness of nitrogen : more than HV**0 Roughness of the surface : Ra0.4Î&frac*4;m Screw straightness :0.**5mm/m