Introduction of gypsum blocking: Raw material: mainly use phosphogypsum. High strength : our products (y1.9-4.2.) are two to three times of :the standard of national construction ministry (y1.5) Light weight: The innovative light blocking made by our factory, 666mm*500mm*120mm , 15kg/piece, which is lighter than the national standard 30kg/piece. It reduce the weight of the wall on the building foundation., which is suitable for the construction of high-rise buildings, large spots, offices, etc. Convenient assembling: Directly brush putty after the drying of the lime adhesive between two blocks, which can not only save the material, but also shorten the working time. What¡¥s more , it reduces the need for the manual labor. The blocking can be cut into any shape with flattening incisions, which lowers the construction costs.