模具所有结构件的材料必须符合材料清单，并且在背面或侧面刻印材料型号以及HRC硬度。

All materials used in mold construction are to correspond to the material list and are to be stamped accordingly on the back or sides of units (Type and R. C. hardness).

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模具所有结构件的材料必须符合材料清单，并且在背面或侧面刻印材料型号以及HRC硬度。

All materials used in mold construction are to correspond to the material list and are to be stamped accordingly on the back or sides of units (Type and R. C. hardness).

youdao