About SATO YOSHIHIKO
About 労働安全衛生総合研
About 火薬学会年会講演要旨集
About low explosive
About explosive
About blasting supplies
About safety management
About safety evaluation
About explosive test
About technical standard
About calorimetry
About reactivity
About Various explosives and propellants
About 反応性物質
About 危険性評価
About 高度化
About 研究