Acta Metallurgica Sinica (English Letters) ›› 1999, Vol. 12 ›› Issue (5): 1038-1040.
• Research paper • Previous Articles Next Articles
H.F.Yu 1) ,P.Q.Liu 1) and W.H.Wang 2) 1) Department of Materials Science and Engineering, Shenyang Architectural and Civil Engineering Institute,Shenyang 110015,China 2) Department of Airport, CAAC Eastnorth Management, Shenyang 110043,China