Certificate of quality Fineness % +-10.0 Initial setting time h:min +-0:45 Final setting time h:min +-10:00 Soundness Mum +-5.0 So3 % +-3.5 Mgo % +-5.0 Loss on ignition % +-5.0 Bending strength mpa +-6.5 Compressive strength mpa +-42.5 1ton/big bag
Cement 42, 5 n/r , gypsum board, steel frame, powered gypsum, gypsum surface paper..