About NAGAI KAORI
About 日本大 生産工
About 月刊防水ジャーナル
About external wall
About landscape
About fouling
About prevention
About finishing material
About time course
About discoloration
About chalking
About efflorescence
About paint film
About antifouling property
About beauty
About anti-fouling
About aged deterioration
About efflorescence
About Walls
About Maintenence and management of buildings
About 外壁
About 美観
About 防汚
About エイジング
About 変色
About 汚れ
About 白華