steel grating 1>Bearing bar pitch:30,40,60mm 2>Cross bar pitch;50,100mm 3>Plain,Serrated,I-shape steel ... : NoItemDescription1Bearing bar25x3,25x4,30x3,30x4,30x5,32x5,40x5,50x5,.....75x10mm2Bear bar pitch12.5, 15, 20, 23.85, 25, 30, 30. ... grating is widly used on construction project, oil project, seaport, power plant, water plant, defense project, chemical factory and so on. Steel Grating ...