Direct Factory Hotline: +86-18960366169
International stone buyers face significant risk when sourcing from unverified middlemen. Module 13 reverses the traditional L1/L2/L3 verification framework into a transparent Self-Audit Dossier so overseas buyers can verify Tianya Limestone's quarry ownership, lab reports, and production capacity in under 15 minutes.
International stone buyers face significant risk when sourcing from unverified middlemen. Module 13 reverses the traditional L1/L2/L3 verification framework into a transparent Self-Audit Dossier so overseas buyers can verify Tianya Limestone's quarry ownership, lab reports, and production capacity in under 15 minutes.
Applicable Scope & Boundary Conditions: Provided to procurement directors, quantity surveyors, and trade compliance teams during vendor qualification.
| Verification Dimension | Authoritative Evidence & Technical Specification |
|---|---|
| L1 Rapid Entity Verification (5 Min) | Verify Unified Social Credit Code, Shuitou industrial address (24.6931° N, 118.4287° E), customs export registration, and ISO 9001:2015 certificate. |
| L2 Technical Capability Audit (20 Min) | Verify SGS/TÜV test reports (ASTM C97/C170/C880/C666), 5-axis CNC equipment list, and sample kit batch consistency. |
| L3 Deep Project Due Diligence | Live video inspection of raw block inventory, 3,000 m² dry-lay floor verification, and third-party pre-shipment SGS/BV loading supervision. |
Request a live video call walking from the raw block yard through the gang saws, 5-axis CNC bridge cutters, and indoor dry-lay hall, and verify that the factory's business license address is in an industrial stone zone like Shuitou Town rather than a downtown office tower.
Yes, 100%. Third-party inspectors are welcome to verify dimensions, surface finish, moisture content, dry-lay blending, and container crate bracing prior to shipment.
