... 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 ... -4, 19-w-2, 15-w-2 etc. 3Twisted Cross Bar Pitch38.1, 40,50, 60, 76, 80, 100, ... coating 6Grating StylePlain / Smooth, Serrated /teeth, I bar, serrated I bar 7StandardUSA: ANSI/NAAMM(MBG531-88),UK: BS4592-1987, ...