Need more information on exactly what you are trying to do, materials, quantities, budget, etc. They don’t make printers specifically for product types, they make them based on materials and quality/resolution. If you want prototypes then there are a variety of machines that will work: 3D Systems and Objet being the larger 2 companies in the US that have printers, and then there are SLA/SLM/SLS machines, which aren’t printers, but will create parts in a variety of materials. Are you trying to buy a printer or do you need parts printed?