pISSN : 1598-706X / eISSN : 2288-8381
Journal of Korea Foundry Society 1987 june ;7(2) : 108-113
Journal of Korea Foundry Society 1987 june ;7(2) : 114-121
Journal of Korea Foundry Society 1987 june ;7(2) : 122-132
Journal of Korea Foundry Society 1987 june ;7(2) : 133-139