GYPSUM POWDER MACHINE, LOW COST, EASY OPERATION, LESS MAINTENANCE, HIGH EFFICENCY ... 1.2 Product specification80~120 Mesh Calcined (Construction ) Gypsum Powder. 1.2 Main technical specification 1.2.1 Quality standardProduct ... paperbacked plasterboard, gypsum block, gypsum blinders, gypsum patching plaster, gypsum plaster.1.3 Raw material requirement1.3.1 Calcium sulfate ...