| Drawing and DFM review | High-purity graphite machining and drawing-based custom parts | Thin walls, sharp corners, coating shadows, or missing datum definitions can block reliable production. | Marked drawing questions, manufacturability notes, CTQ feature list, and quotation assumptions. | Open capability |
| Material and purity qualification | Purity and ash control | Generic purity claims do not protect SiC PVT, epitaxy, or semiconductor thermal-field programs. | Ash target, restricted trace elements, COA scope, ICP-MS plan, and clean handling route. | Open capability |
| Coating route validation | CVD SiC coating | Coating cracks, pinholes, masked-surface mistakes, and post-coating dimension drift can shorten part life. | Coating thickness target, base graphite match, coated/uncoated surface map, and inspection method. | Open capability |
| Load-bearing carbon conversion | C/C composite fabrication | Wrong fiber architecture can cause tray sag, thread stripping, or premature fixture failure. | Load case, support span, fiber architecture, density target, thread standard, and atmosphere notes. | Open capability |
| Release, packing, and export | Inspection and export packaging | Fragile graphite and coated parts can pass final QC but break or abrade during international shipment. | CMM or visual report, packing photos, vacuum bag or foam plan, crate details, and incoterm. | Open capability |