TECHNICAL 21 · LOGISTICS

The document set that clears a frame.

Steel structures need a paper trail: commercial invoice, packing list, mill certificate, bill of lading, and whatever the destination requires. Missing paper is more expensive than missing steel.

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The usual set
Document	Issued by	What the broker checks
Commercial invoice	Supplier	Value, terms, description, HS code
Packing list	Supplier	Bundle count, weights, dimensions
Mill certificate	Steel mill	Grade, heat number, mechanicals
Coating certificate	Galvaniser	Standard, thickness, batch
Bill of lading	Carrier	Ports, container numbers, freight terms
Certificate of origin	Chamber of commerce	Origin, for preferential treatment
Fumigation / ISPM 15	If timber dunnage	Treatment mark

Destination-specific documents (certificate of conformity, pre-shipment inspection) are advised by your broker.

The description problem

Customs classifications depend on the goods description. “Greenhouse frame, galvanised steel, knocked down, for agricultural use” is a different line from “steel tube”. Describe what you are shipping, and use the HS heading your broker confirms — we will supply the technical description and the invoice, we will not decide the classification.

A boundary worth stating

We are not a customs broker and we do not give tariff advice. We supply accurate documents and the technical description; the classification and duty are your broker's call.

Consistency is what inspectors test

Invoice value, packing list weight and bill of lading container numbers must agree. A 200 kg difference between the packing list and the verified weight is a delay. We weigh bundles and issue the packing list from the actual weights, not from a calculation.

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Turn this into a quoted frame list

If this page answered the technical question, the next step is a number. Send the parameters and we will price the tube, profiles, gutters and fittings as one package.

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