... or Serrated Steel Bar:25x5,30x3,30x5,40x5mm Pitch:30,40,50,100mm HDG Shengyang steel grating (Professional Factory) produce three kinds ... 3, 38 x 5 x 3, 40 x 5 x 3, 50 x 5 x 3, 50 x 7 x 4, 55 x ... , 15,25, 30, 30.16, 32.5, 34, 40, 41.25, 45, 50, 60, 60.32, 80, 100 mm etc, also be ... types-G,B,PT,U for the finishG=hot-gavanizedB=bitumen paint-dippedPT=PaintedU=untreated (it can be omitted in the ...