pISSN : 1598-706X / eISSN : 2288-8381
Journal of Korea Foundry Society 1990 december ;10(6) : 495-502
Journal of Korea Foundry Society 1990 december ;10(6) : 503-508
Journal of Korea Foundry Society 1990 december ;10(6) : 509-519
Journal of Korea Foundry Society 1990 december ;10(6) : 520-527
Journal of Korea Foundry Society 1990 december ;10(6) : 528-537