... ×525×5130100G203/30/100G253/30/100G323/30/100G403/30/100G205/30/100G255/30/10050G203/30/50G253/30/50G323/30/50G403/30/50G205/30/50G255/30/50240100G203/40/ ... and serrated grating, trench grate, stair treadGrating Surface:Hot dip Galvanized, PaintingGrating Specification:19-w-4, 15-w-2, 30 ... /100, 40/50, 60/100 and allGrating Application:steel platform, flooring and walkway, trench cover, ...