GBT985.4-2008

1CS25.160.01J33GB中华人民共和国国家标准GB/T985.4-2008复合钢的推荐坡口Recommended joint preparation for welding on clad steels(ISO 9692-4:2003,Welding and allied processes-Recommendations for joint preparation-Part 4:Clad 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中国国家标准化管理委员会发布