1. Full range in bearing bar size and mesh size 2. Largest production capability 3. Best ... -MBG531, BS4592, AS1657, JS31011.3 Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ≥19mm19X3,19X5,20X3, 20X5, 25X3, 25X4, 25X4 ... .4 Grating type: Bearing bar: Plain type, Plain I type, Serratd type, Serrated I type; Cross bar: Square twisted cross bar, Round cross bar2. Types ...