七十年代以来,我厂按照YB529—70的要求,生产国家急需的大直径高压锅炉管。这些钢管经几家用户试用后,认为管子内在质量达到国外同类管材的水平,能够满足20万瓩机组的使用要求。大直径高压锅炉管的成功试验,为我国大直径高压锅炉管的生产并使之最终立足于国内,提供了有益的经 Since the seventies, our factory in accordance with the requirements of YB529-70, the production of the country’s much-needed high-pressure high-pressure boiler tubes. These steel pipe after several users of the trial, that the quality of the pipe to reach the level of similar foreign pipe, to meet the requirements of 200,000 瓩 units. The successful trial of large diameter high pressure boiler tubes has provided a useful guideline for the production of large diameter high pressure boiler tubes in China and made it finally based in China