... 603 x 603, 603 x 1212 , Others size High quality calcium silicate board Calcium Silicate Board has characteristics of ... lots of offices, supermarkets, departments and other buildings as ceiling materials.Features and advantages:1) Waterproof, fireproof, sound ... Stable Property, Slight Deviation,4) High strength and small density, very suitalbe for ceiling decoration. 5) Easy installation, attractive ...