... foodstuff factory, transportation, municipal, administration, parking lot etc.3) steel grating may be applied to platform, floor, walkway, stair treads ... Steel flat size20×3,25×3,25×5,30×3,30×4,30×5,32×3,32×5……45×5mmBeraing bar ... .5,15,20,25,30,35,40,50mmCross bar pitch38,50,80,100mmmaterialLow carbon steel, stainless steel, aluminiumSurface treatmentUntreated, hot galvanized, paintedStandardsChina: YB ...