This will depend on various factors ranging from part size, geometry, surface finish and material type. You can see more about these elements, technical data and more on our dedicated investment castings mainpage.
This depends on various reasons including the volume of parts you require each month/year and logistically i.e. location to where the castings need to be delivered.
For example, our India facility serve many destinations in the Asian region whereas the US facility generally provides parts domestically in North America.
Both plants are extremely diverse having produced over 5000 bespoke products into 100+ market segments in its 30 + years in business. It is true that some of these markets require stringent requirements and as a result, both plants are 9001:2008 and 13485 approved for medical device applications.