The source distinguishes light routing marks, deep cuts or heavy chatter, haze on a dimensionally correct surface, and thin or detailed frames. Select the actual incoming conditions. Deep defects retain an upstream-correction question rather than being hidden inside a longer tumbling cycle. Haze brings cleanliness, paste, fine-stage and cleaning checks. Thin or carved geometry keeps detail, thickness, alignment and assembly interfaces in the acceptance discussion. No cycle duration or paste concentration is inferred.
Select the entries relevant to your review.
Source directions and acceptance checks. Keep every selected requirement with the part and the actual trial record. Selecting a row does not show that its acceptance condition has been met.
Identify the lens groove, hinge seat, bridge, decorative carving and other features that must stay within the drawing. Use a consistent viewing light for clarity and residue inspection. Keep the incoming dimensions and fit checks with the sample. A visually clearer surface is not enough if a groove, bevel or interface has changed. The listed acceptance statements need buyer-approved measurable methods before any production release.
Process Direction: Controlled rough and intermediate stages may gradually level the surface
Acceptance Check: Marks reduced without losing bevels, grooves, or dimensional fit
Process Direction: Correct upstream before tumbling; do not rely on excessive cycle time
Acceptance Check: Defect root removed without changing the designed profile
Process Direction: Review media cleanliness, paste condition, fine-finishing stage, and final cleaning
Acceptance Check: Uniform clarity under consistent lighting with no residue in recesses
Process Direction: Use conservative loading and short inspection intervals; consider selective hand finishing
Acceptance Check: Detail, thickness, alignment, and assembly interfaces remain within specification
Read the Jintaijin technical article. Source table reviewed 3 October 2026. Possible causes, directions and adjustments remain conditional reference fields.
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