There are different ways to make products, however, for making the products with same specification in bulk quantity, the mold tooling would be one of the most common solutions. It can make the products in rapid path and less deviation during processing.
If you are trying to adopt this method, finding a manufacturer of OEM stamping would be important, you would need a professional manufacturer in this field for sure. Making a customized mold is the first step before production, and the quality of the mold would effect the final products directly. That's why you need a great mold manufacturer.
With the great mold maked precisely according to the drawing, you can produce the qualified goods easily via stamping tool. Of course, you can also buy the products you need from the manufacturer if you don't need such a bulk quantity, placing the order of some OEM stamping parts is also a good method for cost down.