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Ten things to include
- 1. 2D drawing in PDF (with title block, drawing number and revision) and, if available, a 3D STEP/IGES model. 3D data speeds up CNC programming and prevents misreading the geometry.
- 2. The exact material grade: e.g. A6061-T6, SUS304, S45C, SCM440, POM – not just "aluminum" or "stainless".
- 3. Quantities: the first batch and expected monthly/annual volume. Unit price depends heavily on quantity because setup time is shared across the batch.
- 4. Tolerances: critical dimensions plus the general tolerance standard (e.g. ISO 2768-m).
- 5. Surface roughness (Ra) on critical surfaces.
- 6. Surface finish: anodizing (color, thickness), zinc or nickel plating, black oxide, powder coating…
- 7. Heat treatment and hardness, if any: e.g. Q&T HRC 28–32.
- 8. Inspection and documentation: CMM report, mill test certificate, CoC, RoHS…
- 9. Packaging and labeling: individual packing, rust prevention, part-number labels.
- 10. Required delivery date and location (and Incoterms if relevant).
What slows quotes down
- Missing views or sections for internal features (grooves, tapped holes, pockets).
- Tapped holes without thread depth and drill depth.
- Drawing and 3D model at different revisions – the supplier cannot tell which one to follow.
- Tight tolerances on every dimension – raising cost without adding function.
Send to Duc Huy Intech
Send your drawings through the quote form on this website, by email to sales@duchuyintech.com or via Zalo +84 968 623 881. We review every drawing carefully, ask before we assume, and reply with a quotation within 48 working hours. For multi-item BOMs, attach an Excel list of part numbers, quantities and materials – we quote line by line.