Resolving Primary Sub-Tier Mill Certificate Disputes under PRC Civil Code Article 620
PRC Civil Code Article 620 bars latent raw material claims unless buyers execute incoming chemical verification and serve formal notice within agreed windows.
Primary Melt Shop Traceability
Meaning
Quality assurance protocols in heavy manufacturing trace the raw materials and refining processes of a steel batch back to the specific furnace heat where it was melted. Implementing primary melt shop traceability allows inspectors to verify that a finished steel product corresponds directly to its original heat. This prevents the blending of different steel heats and ensures that the material properties are consistent throughout the supply chain.
Batch Tracking
The system assigns a unique heat number to the molten metal as soon as it is tapped from the furnace. This primary melt shop traceability is maintained by recording this identifier on all subsequent product certificates.
Factory Inspection
Auditors check these records during routine quality assessments to confirm that the mill test certificates are genuine. They use primary melt shop traceability to verify that the weight of the shipped products does not exceed the total output of the recorded heat.
Risk Mitigation
In the event of a structural failure, this system allows engineers to identify and recall all products made from the same defective steel batch, while leaving unaffected shipments in service. If a manufacturer cannot demonstrate primary melt shop traceability, the entire production run must be rejected, resulting in massive financial losses and legal liability. This level of tracking is therefore essential for high-risk projects where material integrity is linked directly to safety.
It ensures that the buyer can pinpoint the exact origin of a quality failure, protecting both their operation and their customers.