pISSN : 1598-706X / eISSN : 2288-8381
Journal of Korea Foundry Society 1989 august ;9(4) : 311-319
Journal of Korea Foundry Society 1989 august ;9(4) : 320-326
Journal of Korea Foundry Society 1989 august ;9(4) : 327-335
Journal of Korea Foundry Society 1989 august ;9(4) : 336-344