... -18mm 2)Fireproof,waterproof... 3)Other size also available Calcium Silicate BoardDescription: Calcium silicate wall board is a new type of building decoration material ... , calcareousness, lime hydrate, glassfiber,etcMain Dimension: 1220*2440mm,1200*2400mm for partition wallThickness: 4.5-18mmColors : white, gray, light yellowDensity: 900 ...