... steel grating 1.Mild steel,stainless steel 2.Plain,Serrated,I-shape 3.Galvanized, stainless steel,untreated Galvanized steel grating: 1)Material: There are mill steel ... black, hot dip Galvanizing and stainless steel grating.2)Usage: flooring walkway, platform ,steel structures, stair ... Types: Plain Style Steel Grating, Serrated Style Steel Grating and I Bar Type Steel Grating.4)Surface ...