... and easy to install 4.Low thermal insulation Decoration material ceiling tile wall panel JRCSB89Physical Properties CommodityCalcium Silicate BoardBrand nameJINRUANModelJRCSB89ColorLight gray(other ... , in line with GB8624-1997Performance Light weight, highstrengh, fier-proof, water-proof, moisture-proof, sound insulation, heat insulation, thermal insulation,anti-shock,anti-impact ...