咨询加工磨削内孔,镀硬铬HV800-1000,直径12-35mm的零件,磨削量厚度0.035mm,孔深20-50mm

磨削内孔,镀硬铬HV800-1000,直径12-35mm的零件,磨削量厚度0.035mm,孔深20-50mm

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