Thanks both for your responses. I actually am the customer in this instance. One problem we have in our organization is that we only use IATF 16949 registered suppliers, but we use the VDA 6.3 system to audit the suppliers with (German Company). Therefore I guess with your responses, it is safe to say, that if our Advanced Qualify folks in our customer team allow the suppliers to PPAP without specifying the actual press used, the supplier is within their rights to use alternatives (press only).
Andy