About MIZUKI TOORU
About 木村鋳造所
About KANNO TOSHITAKE
About 木村鋳造所
About HORIE HIROSHI
About HIRATSUKA SADATO
About HAREYAMA TAKUMI
About pin hole
About Weld defect
About Various techniques for casting
About 鋳鉄
About 溶接部
About ピンホール
About 母材