... density,heat-preventing,fireproof,waterproof,quakeproof and green material. Cement board is mainly made from silicious material, lime ... the new system.Main parameter:1) Main materials: Tobermorite, cement, quartz sand, reinforced fiber2) Color: white,gray,light yellow3 ... in cartons or in bulkSizes: Calcium silicate board, 2440mm*1220mm*(4-30mm) Calcium silicate ceiling board, 595mm*595mm*(4-6mm) ...