ICS23.020.30J74中华人民共和国国家标准GB28053—2011呼吸器用复合气瓶Compositecylindersforbreathingapparatus2011-12-30发布2012-12-01实施GB28053—2011I目次前言...........................................................................................Ill1范围.......................................................................................12规范性引用文件...........................................
