What information should I provide to an extrusion supplier for a quote?

To get an accurate quote, provide:

1. Detailed Drawing: A 2D drawing with all critical dimensions and tolerances. Clearly indicate the cross-section.
2. Alloy & Temper Specified: e.g., 6063-T5.
3. Quantity: Annual volume and order frequency.
4. Length Requirements: Finished cut lengths, tolerances on length.
5. Surface Finish: e.g., Mill finish, clear anodized 15μm.
6. Post-Processing: Any required machining, drilling, tapping, bending, etc.
7. Packaging: Special packaging needs.
8. Application (Optional): Helps the supplier suggest alternatives.