... the manufacture, welcome you contact us . Detailed Product Description :Calcium silicate board is :1: High density , heat-preventing.2. Fireproof, ... quakeproof.3. Long service life.4. Green products.Calcium silicate board is mainly made from silicious material, lime factory and ... T7019-1997)Radioactivity: In line with the standard, A-class product, no pollution in production, marketing and application( ...