... Main use to do the ditch cover, steel platform plate, steel ladder stepping boards. Bar generally use the square ... through the twisted steel.Steel grid plate commonly used carbon steel production, appearance of hot-dip galvanizing, you can play ... 60/100 and allGrating Application:steel platform, flooring and walkway, trench cover, stair tread contact personMichelle Gao electro and hot-dipped Galvanized ...