About IMAI N
About Sumitomo Metal Ind., Ltd., Hyogo-ken, JPN
About KOMATSUBARA N
About Sumitomo Metal Ind., Ltd., Tokyo, JPN
About KUNISHIGE K
About Sumitomo Metal Ind., Ltd., Hyogo-ken, JPN
About ISIJ International (Iron and Steel Institute of Japan)
About tin
About trace elements
About Mechanical properties
About 熱間圧延
About 軟鋼
About 熱間加工
About Cu
About Sn
About Ni