NAME Brand Compound Steel Grating INTRODUCTION Brand compound Steel Grating is composed of a ... Item Description 1 Bearing Bar 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6 ... 1/2''x1/8'' etc 2 Bearing Bar Pitch 12.5, 15, 20, 23.85, 25, 30, 30. ... Q235, S275JR, SS304, Mild steel & Low carbon steel, etc 5 Surface Treatment Black, self colour, hot dip galvanized, painted, ...