1. 1) T.Ichida : Proc. 4th Int. Conf. on Zinc and Zinc Alloy Coated Steel Sheet (GALVATECH '98), ISIJ, Tokyo, (1998), 229.
2. 2) A.Suda, T.Ogino, T.Miyawaki and S.Maeda : J. Surf. Finish. Soc. Jpn., 44 (1993), 841.
3. 3) The European Parliament and the Council, Draft proposal for a directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment, (June 2000).
4. 4) N.Yoshimi, S.Ando, A.Matsuzaki, T.Kubota, T.Horisawa and K.Okamoto : NKK Tech. Rep., No. 170 (2000), 29.
5. 5) H.Kanai, M.Yamasaki, Y.Mori, K.Ueda, A.Morishita, H.Furukawa, M.Nakazawa, K.Ishizuka and R.Wake : Nippon Steel Tech. Rep., No. 371 (1999), 43.