... bar pitch;50,100mm 3.Plain,Serrated,I-shape 4ISO9001 Hot dip Galvanized Steel Gratinggalvanized steel grating is the ... 50,000 tons .The bearing bar comes in the form of a plain surface flat bar, commonly used for platforms ... bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, ... 1 1/2"x 1/4" etc.3Cross bar pitch38,50,76,100,101.6mm4MaterialQ235,A36,SS3045Surface ...