BS 3146-2-1975 Specification for Investment castings in metal — Part 2 Corrosion and heat resistingBS 3146-2-1975 Specification for Investment castings in metal — Part 2 Corrosion and heat resisting steels, nickel and cobalt base alloys
部份国外标准涉及版权问题,所以全部国外标准于2013年02月,全部删除!相关页面仅提供参考消息。