Acta Metallurgica Sinica (English Letters) ›› 1989, Vol. 2 ›› Issue (2): 113-118.
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XU Wenchong SUN Fuyu ZHAO Peixiang Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China XU Wenchong Senior Engineer,Central Iron and Steel Research Institute,Ministry of Metallurgical Industry,Beijing,China