You have an existing drawing and your part is currently in production. You need to re-source your requirements or duplicate existing domestic or off-shore tooling.

You need to develop a casting from a design concept. Your new drawing is complete or needs additional refinement. Samples need to be produced. Plus, you're looking for a production facility.

You have pattern equipment and need to re-source your requirements. You are looking for a new production facility and need to have your tooling adapted and re-sampled.