... 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etcUS standard: 1''x3/16'', ... /4''x1/8'', 1 1/2''x1/8'' etc2Bearing Bar Pitch12.5, 15, 20, 23.85, 25, 30 ... w-4, 19-w-2, 15-w-2 etc.3Twisted Cross Bar Pitch38.1, 50, 60, 76, 80, 100, 101 ... painted, spray coating6Grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar7StandardChina: YB/T 4001.1-2007, USA: ...