Quick Details Place of Origin: China (Mainland) Brand Name: Xinxing Model Number: Plain type, Plain I type, Serrate... Material: Steel Quality: reliable quality in load bearing,impac... Apperance, Price,Service: attractive apperance,... Material & Grade: Steel Q235 or other equivalen... Grating Standard: YB/T4001, ANSI/NAAMM-MBG531, ... Finishing treatment: 1.Galvanized, 2.Untreated(... Packaging & Delivery Packaging Detail: sea-worthy packing, ie stow wood with steel strip, or wooden tray with steel strip,etc. Delivery Detail: 7 days-30 days Specifications a.full range in type & dimension b.largest production capability c.reliable manufacturer (a state-owned company) d.best price 1.Comprehensive type and broadest range in dimension. 1.1 Material Q235 , or other equivalent material 1.2 Grating Conformity Standard: YB/T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS3101 1.3 Grating Dimension Load Bearing Flat Bar size Thickness≥3mm, depth ≥19mm 19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4.5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6…. Pitch of Load bearding flat bars(mm) 12.5,15, 20, 30, 30.6, 32.5, 34, 34.8, 35.3, 40, 60, 80…… Pitch of cross bars(mm) 38.1, 50, 50.8, 70, 75, 80, 100, 101.6, 102…… The sizes and dimension is not limited to above. 1.4 Grating type: flat bar: plain type, plain I type, serrated type, serrated I type; cross bar: round type and square twisted type.