... properties of ventilation, lighting, heat elimination, explosion proof and anti skid.Material: stainless steel, galvanized, FRP,etc.Surface treatment ... : hot dipped galvanized, PVC coated, painted, etc.Wire Mesh Gratings ModelSpecification of Wire ... steel wire, finished by hot-dip zinc plating, PVC coatingOpening (mm)50×200LxW (mm)1620×3000PVC coating thickness ...