About SHIBUYA MASAFUMI
About OSAWA MASAHIRO
About MATSUMOTO HIROSHI
About HISATSUNE KUNIHIRO
About YASUDA KATSUHIRO
About 歯科材料・器械
About investment material
About Dental prosthetic materials
About 急速加熱
About 石膏
About 埋没材
About 膨張
About 開始時期
About 加熱速度