Linyi Luozhuang Tongtai Building Material Co.,Ltd is one of the domestic key enterprises for providing modern new type building materials with high automatic production line, advanced technique, sustained quality, complete testing measures and strong producing capacities which gain numerous approves from customers both home and abroad for many years. We mainly produce various kinds of middle cross line concaved t grid, T type flat grid,grooved grid, light steel keel, Clip-in carrier and ...