1.(1)Bearing Bar:25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10 100x10mm etc
(2)I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc
(3)US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'', 1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc
2.12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc.
3.Twisted Cross Bar Pitch:38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc
4.Material Grade:ASTM A36, A1011, A569, Q235, S275JR, SS304, Mild steel & Low carbon steel, etc
5.Surface Treatment:Black, self colour, hot dip galvanized, painted, spray coating
6.Grating Style:Plain / Smooth, Serrated /teeth, I bar, serrated I bar
