... ; cross bar: round type and square twisted type. Grating Specification Load Bearing Flat Bar sizeThickness≥3mm, depth ≥19mm19X3,19X5,20X3, 20X5 ... .5, 25X4.7, 25X5…..40X6, 40X8, 40X10,….90X6….Pitch of Load bearding flat bars(mm)12.5,15, 20, 30, 30 ... -86043815Fax:+86-311-86043818Mob:+86-15203113087 galvanized steel bar grating weight