GBT985.3-2008

1cS25.160.01J33中华人民共和国国家标准GB/T985.3一2008铝及铝合金气体保护焊的推荐坡口Recommended joint preparation for gas-shieldarc welding on aluminium and its alloys(ISO 9692-3:2000,Welding and allied processes-Recommendations for jointpreparation-Part 3:Metal inert gas welding and tungsten inert gaswelding of aluminium and its alloys,MOD)2008-03-31发布2008-09-01实施中华人民共和国国家质量监督检验检疫总局敬码防伪中国国家标准化管理委员会发布