Steel grating ISO9001:2000 Type: Plain, serrated, "I", Press-Locked FB405/301/100 Surface: Untreatment,galvanized , plainted Steel grating panel/Steel bar grating panel/galvanized steel grating panel/ plastic coated steel grating panel/steel grating/grating panel/grating platform/flooring grating /stairgrating/steel foam sandwich panel1)Bearing bar pitches maybe 1.5 to 15,20,30,40,60,80,90mm of ...