《石油天然气工业用焊接钢管产品生产许可证换 (发 )证实施细则》宣贯会 2 0 0 3年 8月 1 3～ 1 6日在西安中国石油天然气总公司管材研究所召开。本次宣贯会由全国工业产品生产许可证办公室焊接钢管产品生产许可证审查部主办。来自有关省、市、自治区、直辖市的技术监督局、生 “Petroleum and natural gas industry production license for welding pipe (Fa) Implementation Rules” Xuan Guan meeting August 2003 1.3 ~ 16 days in Xi’an China National Petroleum Corporation Pipe Research Institute was held. The publicity will be held by the National Industrial Products Production License Office welding steel pipe production license review department. From the relevant provinces, municipalities, autonomous regions and municipalities Technical Supervision, students