Steel Floor Grating 1.galvanized well 2.Bearing bar pitch: 30mm, 40mm, ... pitch: 50mm or 100mmSteel Bar Grating: material: Q235A or stainless steel plate, General Specification: 20*3, 25*5, 25*3, 30 ... *5, 65*5 etc.Cross bar: Q235A or 304 stainless steel wire, General Specification: 5*5,6*6,8*8mm4. Bar ...