pISSN : 1598-706X / eISSN : 2288-8381
Journal of Korea Foundry Society 1986 december ;6(4) : 269-276
Journal of Korea Foundry Society 1986 december ;6(4) : 277-283
Journal of Korea Foundry Society 1986 december ;6(4) : 284-289
Journal of Korea Foundry Society 1986 december ;6(4) : 290-297