Quality is checked at defined control points from material receipt to shipment release. Steel coils, insulation cores, fabricated parts and finished assemblies are verified against the approved order specification, while inspection records and nonconformance handling are managed through the ISO 9001 quality-management process used by Huihuang
100% Final Check
Finished products are inspected before packing.
Batch Traceability
Material and production records remain linked to the order.
Third-Party Inspection
Independent inspection can be arranged before shipment.
Measured Release
Dimensions, condition and ordered requirements are verified before dispatch.
Inspection Flow
01
Incoming Material Inspection
02
Pre-production Verification
03
In-process Inspection
04
Finished Product Inspection
05
Packing Inspection
06
Final Release
Finished Modular Units
Incoming Material Inspection
Materials are checked before they enter production, so specification errors are stopped at the receiving stage rather than carried into finished work.
Steel coil verification
Material identification, ordered gauge, width, coating or finish and surface condition are matched to the purchase specification. Thickness gauges are used for dimensional verification.
Core and auxiliary material check
Rock wool, polyurethane, glass wool and other specified core materials are verified for the ordered type and physical condition before release to the panel line.
Lot identification
Accepted materials remain linked to the relevant batch or order record, supporting traceability through production and final inspection.
Pre-production Verification
Before a job is released to the line, the production team works from one approved specification set instead of relying on separate sales notes or verbal requirements.
Drawing and BOM confirmation
Dimensions, steel type and gauge, panel thickness, core material, color, profile, connection details and included accessories are aligned with the confirmed order.
Applicable standard locked to the job
Required execution or product standards are defined during order review, including EN 14509 requirements for specified sandwich-panel work and EN 1090-2 execution requirements for specified structural-steel fabrication.
First-piece confirmation for changed designs
New profiles, revised drawings or changed connection details are checked before continuous production proceeds, preventing a drawing issue from becoming a full-run issue.
Finished Product Inspection
Finished products receive a 100% inspection before packing. The acceptance items are matched to the product type and the specification confirmed for the order.
Final dimensions and visible condition
Overall dimensions, surface condition, flatness, edges and visible fabrication quality are checked before the product is transferred to packing.
Product-specific functional checks
Sandwich panels are checked for joint fit, core-to-facing condition and panel geometry; modular and fabricated products are checked for squareness, connection interfaces, openings and included fittings.
Test evidence matched to ordered requirements
Where fire, thermal, mechanical or other declared performance is part of the order, the applicable test or inspection documentation is matched to the released product rather than replaced by a visual check.
Final Release
Shipment status changes only after the required inspection steps are closed. A finished item that has not passed the release route does not enter the shippable lot.
Nonconforming items are held from shipment
Items requiring correction are separated from released goods, reworked where applicable and re-inspected before their status can be changed to accepted.
Release file matched to the shipment
The final shipment can be supported by the relevant inspection record, packing list, product photos and ordered material or test documentation.
Third-party inspection before dispatch
Independent inspection is accepted. When it is included in the order, final shipment release can be held until the agreed inspection is completed.
