Industrial Products Inspection in China

What falls under industrial products

Machinery and production equipment, HVAC systems and components, metal fabrications, pumps, panels and specialised B2B parts. Orders here are usually low-volume and high-value, bought against drawings and technical agreements rather than a showroom sample — so the paperwork is inspected as seriously as the metal.

How B2B inspection differs from consumer goods

There is no AQL table for ten machines. Instead the check is staged: materials verified against certificates when they arrive, dimensions and weld appearance monitored during fabrication, and a witnessed acceptance test before packing, following the procedure your engineers agreed with the supplier.

• Incoming material certificates matched to the specification's grade requirements
• Critical dimensions recorded against the drawings, with calibrated instruments
• Witness testing: the supplier runs its own tests while the inspector observes, times and records the results
• Nameplates, rating data, marking and traceability numbers verified
• Export packing checked for rust protection, fixing points and humidity control

Recurring risks in this category are quietly downgraded materials, unchecked dimensions on second-source parts, surface corrosion from bare storage, missing fastener grades, and documentation gaps that stall customs or commissioning.

What exactly is witness testing?

The factory performs its own acceptance tests — run-in, pressure, performance curves, safety interlocks — and the inspector attends as your representative: confirming the instruments are calibrated, the procedure matches the agreed one, and the readings are recorded honestly. The manufacturer's tests are not replaced; they are made to actually happen, on the real machine, before the balance is paid.

Can documentation be verified too?

Yes — mill certificates, calibration records, test procedures and manuals are reviewed against the contract, because an industrial shipment without its file is often unusable at the destination even when the hardware is flawless.

For suppliers you have not met, a factory audit before the order confirms the equipment list is real, and loading supervision documents how heavy units were blocked, braced and sealed for the sea leg. Quotes are returned as fixed fees within one working day, with English reports inside 24 hours of the visit.