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2. 2) K.Hoshino: Study on the arc welding of Cast Irons, Bulletin of the DAIDO Institute of Technology, 19 (1983),39-54. (in Japanese)
3. 3) T.Ohi: Metallurgic research on the welding of the cast iron (Doctoral dissertation), Osaka University (1983). (in Japanese)
4. 4) N.Kato: Developmental research on the welding of the cast iron (Doctoral dissertation), Tokyo Institute of Technology (1985). (in Japanese)
5. 5) Y.Ishii, H.Tamura, N.Kato, Y.Tezuka, K.Murase and K.Morishita: Electroslag welding of cast iron (Report 1), Quarterly Journal of the Japan Welding Society 39 (1970), 185-196. (in Japanese)