Feature Electroplating Hard chrome aseptic technic inside the mold, which do not rust easily with long service ages. In the structure of the gypsum block mold, the Ra value of the surface roughness on the joint side is not less that 3.2. Sealed structure with no slurry leaked, without any hard friction to operating surface, which makes the service ages more longer. The Ra value of the surface roughness between forming mold and the operating face of the evacuated tubes, materials should be less than 1.6. we have made it between 0.6 - 0.8, which has exceeded the national standard. Advantage Less investment: 4 pieces in 1 set, simple operation and high production speed, one worker can produce 240 pieces of boards per day . Good product 　　Boards are in good flatness, without plastering, the walls reached the high-level standard of covering of stucco. 　　Low cost: The main material is the desulfurization gypsum powder. 　　8-15 cm of thickness is available in wall panels producing, using these wall panels will effectively expand the housing area of 6%. 　　The features of light weight, heat insulation, soundproof and fireproof meets the national policy of energy-saving and consumption reduction. 　　Unique structure: two boards recessed docking, fast installation and improve the strength of high-impact of the wall panels. 3. Substantial Profit