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新品厂销荣布劳特HJL刀盘螺栓34CrNiMo6H双头螺柱螺栓M42750 109
34CrNiMo6 5CrNiMo Y12 Y15 Y40Mn易切削12CrNi3圆棒20CrM5crnimo
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36CrNiMo4 28NiCrMo4 30CrNiMo8 34CrNiMo6 42CrMnMo合金板材棒材
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40crmnmo 18crnimo7-6 40crnimoa 34cr2ni2mo板材Q345D 20#圆钢锻
CR12MOV 4Cr13圆钢H13 P20 9CR18 40CrNIMOA T10a模具钢34CrNiMo6