This may be outside the scope of this group, but I have to start somewhere. I need to find a PCB board manufacturer that: has experience in making high quality boards rated for temperatures over 170C, using BT/Epoxy, Polyimide, and PPE resin systems. and grade 3 copper foil. I'm looking for companies in the Massachusetts area. I've started a new pro/high-end audio electronics business, have tested prototypes and have the boards I need made designed in ORCAD and the parts inventory of the components for the boards. Any help is appreciated. I'm new to the electronics industry. Thanks.