... shipment Hot dip galvanized serrated steel flat bar gratingProduct infoa. Material: Q235B, A36, SS400, S235JR, SS304, SS316, SS304L, ... 50mm, 100mme. Length: Regular as 3m per piecef. Material: A36 or equivalent material, SS304, SS316g. Advantage: light weight, heavy load capacity ... Technical standard: YB/T 4001.1-2007 (GB), ANSI/NAAMM(MBG531-88) ( ANSI), BS4592-1987, AS1657-1985, DIN24537-1-2006. ...