BLADES, CARBIDE DOWEL TYPE, 3' SECTION. SHALL BE IN ACCORDANCE WITH THE STATE OF ILLINOIS DEPARTMENT OF TRANSPORTATION SPECIFICATION NO. 960-60-02 FOR CARBIDE DOWEL TYPE BLADES FOR SNOWPLOWS, DATED FEBRUARY 2012. BLADES, CARBIDE DOWEL TYPE, 4' SECTION. SHALL BE IN ACCORDANCE WITH THE STATE OF ILLINOIS DEPARTMENT OF TRANSPORTATION SPECIFICATION NO. 960-60-02 FOR CARBIDE DOWEL TYPE BLADES FOR SNOWPLOWS, DATED FEBRUARY 2012. SNOWPLOW CUTTING EDGES FOR MID-MOUNT WINGPLOW, 8", 5/8" THICK, 7' LONG SHALL BE IN ACCORDANCE WITH THE STATE OF ILLINOIS DEPARTMENT OF TRANSPORTATION SPECIFICATION NO. M50-07 FOR CUTTING EDGES FOR SNOWPLOWS, DATED FEBRUARY 2007 AND THE MID-MOUNT WINGPLOW DIAGRAM. SNOWPLOW CUTTING EDGES, 11' LONG, CENTER PUNCHED BLADE (FACING BLADE FOR CARBIDE INSERTED BLADES), CODE 120 SHALL BE IN ACCORDANCE WITH THE STATE OF ILLINOIS DEPARTMENT OF TRANSPORTATION SPECIFICATION NO. M50-07 FOR CUTTING EDGES FOR SNOWPLOWS, DATED FEBRUARY 2007.