Alloy Artifacts |
| Company (ID) | Name and Years of Operation | Factory Name and Years | Factory Address |
|---|---|---|---|
| 室本鉄工 | Muromoto Tekkō (1927 - ) | Nakahama (1927 - 1937) | 大阪府 |
| Higashi-Imazato (1937 - 1966) | 大阪府 | ||
| Ishizu (石津) (1966 - 1989) | 大阪府寝屋川市石津372 | ||
| Shodai-Tachika (招提田近) (1989 - ) | 大阪府枚方市招提田近１丁目８番１号 |