Yong Yu, Shenzhen, China Building Material Co., Ltd. is specialized in researching, developing, producing fire-resistant construction materials science and technology companies. .
Since 1997, the company after more than ten years of development, in the composite fire-resistant glass, fire door core board, fireproof plastic Deng refractory Chanpin on scientific and technological progress achieved encouraging results, the national leader in fire protection technology glass products. St