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河北省金属学会组织召开第四届钢管（无缝、焊接）学术会议４ＴＨＳＥＭＩＮＡＲＯＮＳＴＥＥＬ（ＳＥＡＬＭＬＥＳＳ＆ＷＥＬＤＥＤ）ＴＵＢＥＳ＆ＰＩＰＥＳＨＥＬＤＢＹＨＥＢＥＩＰＲＯＶＩＮＣＩＡＬＳＯＣＩＥＴＹＯＦＭＥＴＡＬＳ由河北省钢管学术委员会和省冶金行...
Hebei Institute of Metals organized the fourth session of steel pipe (seamless, welding) conference 4THSEMINARONSTEEL (SEALMLESS & WELDED) TUBES & PIPESHELDBYHEBEIPROVINCIALSOCIETYOFMETALS by the Hebei Provincial Academic Committee and the provincial steel metallurgy ...