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自1992年9月美国锅炉压力容器检验师协会(NBBI)会刊上发布了关于出口法兰质量问题的《中国法兰调查》特别报告以来,在有关部门的大力支持下,劳动部锅炉压力容器检测研究中心(简称CBPVI)当时组织有关人员对法兰生产厂家的生产条件、工装设备、质保状况、检测手段等情况进行了调查,制订了《法兰、弯头、管件监制和检验工作通则》和《法兰、弯头、管件检验方案实施细则》,并对五个基本符合条件的法兰、管件生产厂家进行国内监制和出口检验。
Since the publication of the “China Flange Survey” special report on the quality issue of flanges issued by the American Association of Boiler and Pressure Vessel Inspectors (NBBI) in September 1992, with the strong support from relevant departments, the Ministry of Labor Boiler Pressure Vessel Inspection and Research Center (CBPVI) was the organization of the relevant personnel of the flange manufacturer’s production conditions, tooling equipment, quality assurance conditions, testing methods and other circumstances were investigated, developed a “flange, elbow, pipe production and inspection General” And “Flanges, elbows, pipe fittings inspection program implementation details,” and five basic meet the requirements of flanges, pipe fittings manufacturers for domestic producer and export inspection.