About IMAIZUMI TOKUSHIGE
About アイナックス
About 繊維製品消費科学
About dry cleaning
About solvent
About property
About legal regulation
About process (production)
About drying
About Petroleum
About cleaning process
About aliphatic chlorine compound
About olefin compound
About washability
About 乾燥工程
About 石油系溶媒
About Related industries
About Properties,analysis and test of petroleum and petroleum products
About Various petroleum products and their manufacturing in general
About Tetrachloroethylene
About 溶剤
About 動向