Galvanized Steel Coil DX51D from China: How to Order GI and Avoid Zinc Substitution
Ordering DX51D coil from China: grades DX51D and DX52D, zinc coating Z100–Z275, the substitution scam and how to lock zinc weight into the contract.

Chinese language, trade with China, business culture, sourcing and practical knowledge.
Ordering DX51D coil from China: grades DX51D and DX52D, zinc coating Z100–Z275, the substitution scam and how to lock zinc weight into the contract.
HR versus CR steel for wholesale import from China: surface finish, tolerances, grades, the price gap and how to pick the right coil for your application.
Buying steel direct from Chinese mills from one container or 20 tonnes: product types, how pricing is built, grade-substitution risk and mill test certificates.
1688, Alibaba, Made-in-China or Global Sources — which China wholesale platform fits your order size, budget and risk. A sourcing agent's breakdown.
Counterfeits, replicas, quality fade and fake certificates are manageable risks. A five-stage control system from picking the factory to accepting the cargo.
How the two models differ when building your own brand in China: who owns the tooling, whether an ODM design is exclusive, MOQ, and a checklist for choosing.
The four inspection types when importing from China: factory audit, during production, pre-shipment and loading. When to order each, and what AQL means.
Which clauses a contract with a Chinese factory must contain: legal entity and seal, quality, payment, Incoterms, penalties, NNN and dispute resolution.
FOB, CIF, EXW and DDP in plain words: who pays and who carries the risk at each point, and which term to choose for a container shipment from China.
Escrow, a letter of credit, payment through a vetted agent or a direct T/T — which method actually protects your money in a wholesale import deal.
MOQ is the minimum batch a factory will produce. What actually determines the minimum order in China, and the levers that lower it without sacrificing quality.
Why China's domestic prices run 20–30% below Alibaba, when that saving is real for a wholesale importer, and when it disappears into logistics and QC.