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Director Mr ChangSunYueLiang "wear-resisting pipe technical conditions" (DL/T 680-680) ShenDingH
Date：
2022-03-09 09:47
Director Mr ChangSunYueLiang on July 25, 2013 in heilongjiang province mudanjiang "wear-resisting pipe technical conditions" (DL/T 680-680) ShenDingHui, with experts in technical conditions for the final approval and pass. The meeting agreed to report the examination and approval of the technical conditions, and the next stable cross work arrangement.
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