... 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 ... self colour, hot dip galvanized, painted, spray coating 6flooring grating StylePlain / Smooth, Serrated /teeth, I bar, serrated ... -1985, Japan:JIS ,China: YB/T 4001.1-2007, galvanized pavement grating