GB5117-2012非合金钢及细晶粒钢焊条

ICS25.160.20J33中华人民共和国国家标准GB/T5117-2012代替GB/T5117-1995非合金钢及细晶粒钢焊条Covered electrodes for manual metal arc welding of non-alloy and fine grain steels(ISO 2560:2009,Welding consumables-Covered electrodes for manualmetal arc welding of non-alloy and fine grain steels-Classification,MOD)2012-11-05发布2013-03-01实施中华人民共和国国家质量监督检验检疫总局数码防伤中国国家标准化管理委员会发布