He production line adopts the technology of double-drive double-roller extruding, and the product is formed once after sizing, material feeding, spreading no-woven cloth, Compounding and repressing. Fireproof mgo board production line runs stably with High automatic degree, the specification of its product can be adjusted arbitrarily. The equipment actually realizes the industrial production line of new model building wall board, and the boards have even and glazed surface with high compactness.