About SUZUKI HIROSHI
About 日本ウレタン建材工業会
About ウレタン建材
About JIS
About modification
About building
About paint film
About water proof material
About roof (building)
About urethane rubber
About spraying (construction)
About tensile strength
About elongation percentage
About hardening
About mechanical property
About strength
About Water-proofing,damp-proofing of buildings
About JIS
About 建築
About 塗膜防水