海量資源,盡在掌握
 (1)塑料模具鋼的化學(xué)成分(表2-153)表2-153塑料模具鋼的化學(xué)成分牌號碳硅錳鉻鉬碳素塑料模具鋼(YB/T094—1997)SM45SM50SM550.42~0.480.47~0.530.52~0.580.17~0.370.17~0.370.17~0.370.50~0.800.50~0.800.50~0.80——————預(yù)硬化型塑料模具鋼(GB/T1 (共 6366 字) [閱讀本文] >>