GB/T 33588.7-2017雷电防护系统部件(LPSC)第7部分:接地降阻材料的要求国家标准
英文:Lightning protection system components(LPSC)—Part 7: Requirements for low resistivity mixture for earthing GB/T 33588...
英文:Lightning protection system components(LPSC)—Part 7: Requirements for low resistivity mixture for earthing GB/T 33588...