About SUZUKI HIDEO
About 花王
About HAGIHARA TOSHIYA
About 花王
About KOBAYASHI YUICHIRO
About 花王
About KITAZAWA KOZO
About 花王
About KISHIMOTO KOJI
About 花王
About 日本潤滑学会トライボロジー会議予稿集
About engine oil
About Internal combustion engines in general
About Various petroleum products and their manufacturing in general
About 摩耗
About エステル
About 基油