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国家发改委根据《标准化法实施条例》的规定,对已实施5年以上的行业标准进行了复审,决定废止181项行业标准。其中石油天然气行业标准16项,以2005年第45号公告公布,自公布之日起生效。标准编号标准名称SY/T5020-1997钻井泵用锥柱螺纹SY/T5022-1998泥浆泵用锥柱螺纹量规SY/T5246-
National Development and Reform Commission in accordance with the “Regulations for the Implementation of the Ordinance,” the provisions of the industry has been implemented more than 5 years of review, decided to abolish 181 industry standards. Among them, there are 16 petroleum and natural gas industry standards, announced in Announcement No.45 of 2005 and effective as of the date of promulgation. Standard No. Standard Name SY / T5020-1997 Drilling Cone Threaded SY / T5022-1998 Slurry Cone Threaded Gauge SY / T5246-