Galvanized steel grating 1,Type:Plain,Serrated,"I",Press-Locked 2,FB405/30/100, 3,1mx6m 4..Surface:Untreatment,Galvanized Galvanized ... Specification: 1) Mild Steel : ASTM A36, BS4360,JIS G3101 & SS400 2) Stainless Steel SUS 304&SUS3163.Specification of steel grating:Item ...