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表８合金结构钢统一数字代号钢组序号牌号数字代号钢组序号牌号数字代号CrMoAl４６３８CrMoAlA３３３８２CrNi６２４０CrNiA４０４０２CrV４７４０CrVA２３４０２６３４５CrNiA４０４５２４８５０CrVAA２３５０３６４５０CrNiA４０５０２CrMn４９１５CrMnA２２１５２６５１２Cr
Table 8 alloy steel uniform number code steel group number brand number code steel group number brand number code CrMoAl4638CrMoAlA33382CrNi6240CrNiA40402CrV4740CrVA234026345CrNiA404524850CrVAA235036450CrNiA40502CrMn4915CrMnA221526512Cr