About JENA P K
About Natural Resources Development Foundation, Bhubaneswar
About UCHIDA S
About Tohoku Univ., Sendai, JPN
About TOKUDA M
About Tohoku Univ., Sendai, JPN
About Transactions of the Indian Institute of Metals
About copper ore
About Heat treatment of ore
About Smelting
About Cu
About Ni
About 硫化物
About 精鉱
About 面積
About ばい焼
About NH4Cl
About 研究