1.9-yrs professional fty 2.Hot dipped galvanized surface treatment 3.Serrated Steel Grating 4.ISO9001:2000 supplier Bar grating is designed to for many applications. Bar grating is a strong choice for projects ranging from trenches to decking. Aluminum bar grating is a good choice when a lightweight, corrosion resistant material is desired. Choose from many options such as: flush top, rectangular ...