... .material:Q235 b.top:serrated c.surface:galvanized or stainless d.supply 4000 square ... ,000 tons .The bearing bar comes in the form of a plain surface flat bar, commonly used for platforms, ... NoItemDescription1Bearing 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 ...