roperties;Round steel chains;Safety;Safety requirements;Short link;Steel chains;Surface hardness;Testing;Tolerances (measurement);User information;Weights【摘要】: 【中国标准分类号】: J80【国际标准分类号】: 53_020_30【页数】: 33P.;A4【正文语种】: 英语 | 欢迎光临 世界资料网论坛 (http://bbs.infoeach.com/) | Powered by Discuz! X2.5 |