Linyi Tongtai Building Material Co, Ltd is one of the domestic key enterprises for providing middle cross line concaved T grid, T type flat grid, grooved grid, light steel keel, Clip-in carrier and their accessories for ceiling suspension and drywall partition. Our company is famous for our high automatic production line, advanced technique, sustained quality, complete testing measures and strong producing capacities which gain numerous praises from customers both home and abroad for many years.