Alloy Artifacts |
| Company (ID) | Name and Years of Operation | Factory Name and Years | Factory Address |
|---|---|---|---|
| 北越機械工作 | Hokuetsu Kikai Kōsaku (1939 - 1944) | Oaza (1939 - 1945) | 1-525 Oaza-Sanjo, Sanjo City |
| 中島精密鍛造 (TOP) | Nakajima Seimitsu Tanzō (1944 - 1963) | Oaza (1939 - 1945) | 1-525 Oaza-Sanjo, Sanjo City |
| 2624 Tajima (田島) (1945 - 1987) | 三条市大字田島2624 | ||
| トップ工業 (TK, TOP) | Top Kōgyō (1963 - ) | 2624 Tajima (田島) (1945 - 1987) | 三条市大字田島2624 |
| 2190-5 Tsukanome (塚野目) (1982 - ) | 三条市塚野目２１９０－５ |