... .ASTM A123,SS400 4.Common pitch:30mm&40mm 5.Used in flooring,walkway 1.Comprehensive type and broadest range ... MBG531, BS4592, AS1657, JS31011.3 Grating Dimension Load Bearing Flat Bar sizeThickness≥3mm, depth ≥19mm19X3,19X5,20X3, 20X5, 25X3, 25X4, ... . 11 sets of press welded (electro-forged welding) production lines creat largest production capability, flexible and controlled delivery to cater to the ...