Mechivon · operated by 上海晋佳实业有限公司 · English translation used in business correspondence: Shanghai Jinjia Industrial Co., Ltd. · Shanghai, China · luoyong@mechivon.com
Unified social credit code: 91310117MA1J3PMB0D · Established: 13 August 2019 · Legal representative: Luo Yong (罗勇). Registration details checked against the company-provided business licence; English name is a business translation.
| Record / specification revision | DEMO-SC-001 / Rev A · DEMO-SPEC-001 / Rev A. Teaching references only; no catalogue item is verified by this record. |
|---|---|
| Model / sample identifiers | DEMO-DISC-125-8H-P80; fictitious sample set DEMO-S01, S02, S03. |
| Source / received date / check date | Imaginary Supplier A, no real business identified. Fictional receipt and check dates: 2026-10-03. |
| Example requirement | 125 mm diameter; 8 holes; P80; hook-and-loop attachment. Paper backing and aluminium oxide requested but composition remains unverified. Dry sanding application must be reviewed with supplier and buyer. |
| Example acceptance agreement | Diameter 125.0 ± 0.5 mm, 8 holes, legible P80 label, no visible tears or backing separation. These are fictional buyer-agreed criteria, not industry-wide tolerances. Hole size and positions need an approved drawing or template; count alone does not prove fit. |
| Tools / method / calibration | Imaginary calliper DEMO-CAL-01, resolution 0.1 mm; calibration status is fictional and not verified. Example method: two perpendicular diameter readings without compressing the edge; count holes; compare marking; visual inspection of both faces and edge. No actual check occurred. |
| Prepared by / review | Demo Operator / Demo Reviewer — fictional roles, no signature or actual authorisation. |
| Sample | Diameter, two directions | Visible checks | Teaching decision |
|---|---|---|---|
| DEMO-S01 | 124.9 / 125.1 mm (fictional) | 8 holes; P80 marking; no simulated visible defect | Within fictional diameter criteria. No overall product approval. |
| DEMO-S02 | 125.0 / 125.2 mm (fictional) | 8 holes; P80 marking; no simulated visible defect | Within fictional diameter criteria. Hole alignment still open. |
| DEMO-S03 | 125.8 / 125.6 mm (fictional) | 8 holes; simulated 4 mm edge tear | Fails fictional diameter and no-tear criteria. Hold for investigation. |
No real photographs are included. In a real record, attach images matching the sample identifier: front, backing and printed grit, dimensions with a readable scale, edge detail, packaging and batch label. Record source, date and display permission. An illustrative image cannot replace sample evidence.
Abrasive composition, grit-distribution compliance, backing specification, resin system, adhesion strength, wet-use suitability, sanding performance, service life, dust-extraction fit, batch consistency and packaging quantities are unverified. Visual and dimensional checks cannot establish these properties. The three fictional samples do not establish lot acceptance.
Fictional deviation DEMO-NCR-001: isolate DEMO-S03; hold the sample set from approval; request supplier cause analysis and a corrected sample. Verify hole alignment against the approved drawing before any fit decision. Supplier response, replacement and recheck are pending; no corrective action is claimed complete.
Buyer approval: PENDING. No customer has approved this document. A real buyer would confirm the specification revision, acceptance scope and open points in writing before production. No order or shipment is authorised by this example.
The teaching decision is to withhold approval because one simulated sample fails the fictional criteria and important evidence is missing. Replace fictional entries with traceable source documents, actual readings and agreed acceptance criteria when real samples become available. Publish a real record only with permission and sensitive information removed.