We generally say that the throwing head refers to the accessories of the sand making machine, which are usually cast iron or steel castings. So what is our cemented carbide part? The part of the cemented carbide is a sand bar, which is welded on the accessories of the throwing head. Different grades of wear-resistant products are selected for different use environments. For large and irregular inclusions, it is necessary to choose impact-resistant cutter heads to ensure the stability of use without smashing; for small and uniform materials, high wear-resistant cutter heads can be used, focusing more on wear resistance.