BS 970-1-1983 英国标准规范机械和相关工程用锻钢 第一部分 碳钢,碳锰钢,合金钢和不锈钢的一般检验试验程序和具体要求 British Standard Specification for Wrough steels for mechanical and allied engineering purposes Part 1. General inspection and testing procedures and specific requirements for carbon,carbon manganese,alloy and stainless steels