... 3.Product capacity:100 tons/day Steel grating Plain steel grating,bar grating Material:hot dipped galvanized wire ... 2.the grating that eh pitch between bearing bar is 40mm is the most economical and lightest ... 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 ...