... 2.long service life 3.fireproor,moistureproof 4.easy application Tolerance in Dimension ItemindexRequirementLength<1200 ±3 1200~2400 ± ... Asbestos freeRasdioactive<1.0Ira <1.0Ir Non-combustibilityA11. main application :suspended ceiling ,used in the office,market,school, ... temperature asbestos fiber reinforced calcium silicate board9.ease of application: do the dry operation, fast construction , it ...