ipes;Rigid pipes;Specification (approval);Steel pipes;Steels;S【英文主题词】: 【摘要】: This International Standard specifies requirements for EHDERS (extra heavy-duty electrical rigid steel) conduits, couplings, nipples and elbows for electrical installations, including communications and fibre optics. This standard also specifies threads【中国标准分类号】: H48【国际标准分类号】: 29_120_10【页数】: 21P.;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 |