steel angle,flooring grating is widely used in municipal ... quarters,garden facilityes,ect. Detailed Selling Lead Description steel angle ,flooring grating is a NEW building material, it' ... 30, 40, 60mm etc, also be according to client's requirement and 30, 40, 60mm are recommended. 3) Cross ... 50, 76, 100mm etc, also be according to client's requirement and 50, 100mm are recommended. 4? Material: Mild ...