Shandong tiangong metal technology co., LTD. (hereinafter referred to as "tiangong") belongs to shandong tiangong group, and is a professional integrated supplier of modern roofing building materials system integrating r&d, production, sales and installation. The company mainly produces, sells, installs the color stone metal tile, the archaize metal tile, the integrated building and the related accessories. Tian gong is one of the largest color stone metal tile manufacturers in China. At present, the company has fully automated color stone metal tile, antique tile production lines 6, integrated housing production lines 2. The company has 20,000 square meters of modern production workshop, has an independent product research and development laboratory. It has nearly 100 production personnel and nearly 20 r&d personnel. Annual capacity of more than 2 million square meters.