It is an irregular piece of metal, which may be made of cast iron for cast iron ploughs or welded steel for steel ploughs.
It may be made of cast iron for cast iron ploughs or it may be welded steel for steel ploughs. It is an irregular piece of metal.
It is an irregular piece of metal. It may be made of cast iron for cast iron ploughs or it may be welded steel for steel ploughs.
It is an irregular piece of metal. It may be made of cast iron for cast iron ploughs or it may be welded steel for steel ploughs.