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精密C401.0511C451.0503钢板C501.0540C551.0535碳素钢棒材
碳素钢1.703616MNCR516MNCRS5碳结钢C401.0511C451.0503
精密1040S40C1.051140Mn1039圆棒C451.0503C501.0540钢板
精密C401.0511，C451.0503冷拔钢C501.0540圆钢C601.0601钢板
零切C401.0511C451.0503钢板料C501.0540C551.0535光亮棒材
