steel grate 1,stainless 2,strong strength 3,durable products 4,water leakage area 83.3% Steel Grating1) Material: Mild ... ) Surface Treatment: Hot dip galvanized , Painted , Untreated.3) Shape of bearing bars: Plain style , Serrated style , I section style4) Main ... Steel grate use inIf you are interested in our steel grate,pls do not hesitate to contact us: specializing in the production of steel grate