roperties;Rockwell;Rockwell hardness;Rolled steels;Semi-finished products;Specification (approval);Steel bars;Steels;Structural steels;Testing;Testing conditions;Weights;Wide flats;Wires【摘要】: 【中国标准分类号】: H40【国际标准分类号】: 77_140_10【页数】: 39P.;A4【正文语种】: 其他 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |