About TOOYAMA FUMIO
About 日立金属
About TAMURA YASUSHI
About 日立金属
About NAKATSU HIDESHI
About 日立金属
About FUKUSHIMA KATSUAKI
About 日立金属
About metal mold
About Molding process and its equipment in general
About 金型
About 耐錆性
About 被削性
About 常識
About プラスチック