Guangzhou Zengcheng Sen You Yi New Material Co., Ltd. is a high-tech enterprise with the aim of green environmental protection, which serves the research and development, production and sales of fireproof materials. It is the most productive comprehensive enterprise in Southern China area. And technical workers, is one of the domestic authority magnesite fireproof door core board, Magnesium Sulfate fireproof door core board, flameproof door core board, fireproof glue water and foaming agent. The company's fireproof door core board has passed the inspection of the national fire building material quality supervision and inspection center to reach the A1 class fire grade ... >>More