GB/T 30215-2013 飞机电磁继电器和接触器通用要求.pdf文档页数:59文档大小:2.2MB文档格式:pdf ICS49.060 V40 GB 中华人民共和国国家标准 GB/T30215-2013 飞机电磁继电器和接触器通用要求 General requirements for electromagnetic relays and contactors of aircraft (IS
BS EN ISO 15614-2 2005 Specification and qualification of welding procedures for metallic materials. Welding procedure test - Arc welding of aluminium and its alloys.pdf文档页数:38文档大小:655.96KB文档格式:pdf BRITISH STANDARD BS EN ISO 15614-2:2005 Sp