Step 2
Separate the seller from the factory.
A trading company is not automatically a problem, and a company describing itself as a factory is not automatically safer. Ask who manufactures the product, who signs and invoices, and who is responsible for quality, rework, warranty, and delivery.
If the seller and manufacturer differ, document the relationship instead of relying on an implied connection.
Step 3
Make product claims testable.
Replace “good quality,” “same as sample,” and broad capacity claims with measurable specifications, controlling samples, test conditions, defect definitions, inspection points, and written remedies.
The evidence should fit the product: materials and tolerances for components, packaging and defect limits for consumer goods, or model-specific acceptance tests for machinery.