GBT985.1-2008气焊、焊条电弧焊、气体保护焊和高能束焊的推荐坡口

ICS25.160.01J33中华人民共和国国家标准GB/T985.1-2008代替GB/T985-1988气焊、焊条电弧焊、气体保护焊和高能束焊的推荐坡口Recommended joint preparation for gas welding,manual metal arc welding,gas-shield arc welding and beam welding(ISO 9692-1:2003,Welding and allied processes-Recommendations for jointpreparation-Part 1:Manual metal arc welding,gas-shield arc welding,gas welding,TIG welding and beam welding of steels,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型袋1中国国家标准化管理委员会发布数码防伪