... 3)ASTM A123,SS400 4)Common pitch:30mm&40mm 5)Used in flooring,walkway2.A leading professional producer, ISO9001 ... COMPANY , GRATING SPECIALIST! No.ItemDescription1Bearing Bar25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, ... ''x1/8'', 1 1/2''x1/8'' etc2Bearing Bar Pitch12.5, 15, 20, 23.85, 25, 30, 30.16, ... 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, ...