
Heat-treatable steels, alloy steels and free-cutting steels - Part 4: Free-cutting steels (ISO 683-4:2016)
出版:Osterreichisches Normungsinstitut/Austrian Standards

專(zhuān)家解讀視頻
ISO 683-4 : 2016 - Identical
EN ISO 683-4:2018 - Identical
ISO 683-4 : 2016 - Identical