kinds of forged and casted knife guards 1) Guard models: single (simple) guard, double guard, and triplicate guards. 2) Quality: forged guards, casting guard and punched guard,Special hardening process gives the guard extremely high hardness, durability and long usage life. 3) Colors: natural varnished, red or green varnish or as requested. 4) Production application: The spare parts of the combine harvester of the grain, the grass cutter, the cutter blade of the other agriculture machinery fittings and the harvester finger and so on.