... 2. Largest production capability 3. Best Price 4. Reliable manufacturer 1. Comprehensive type and broadest range in dimension.1.1 ... YB/T4001, ANSI/NAAMM-MBG531, BS4592, AS1657, JS31011.3 Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ≥19mm19X3,19X5 ... Japan, Germany,Switzerland,etc.4. Capable design can make grating customized according to site requirement. Steel Grating Black Panel