Duplicate Sample

A duplicate sample is a copy of a sample that is identical to the original sample, retained by the seller or buyer in foreign trade for future reference. It is used to verify the quality of delivered goods, handle quality disputes, or serve as a production standard. Usage scenarios include: after sending the original sample, the seller keeps a duplicate sample for the buyer's confirmation or for the production department's reference; after receiving the original sample, the buyer may also request the seller to provide a duplicate sample as the basis for order quality. Precautions: The duplicate sample must be strictly consistent with the original sample, including materials, color, craftsmanship, etc.; it should be properly stored and labeled with date and number to avoid confusion; if the original sample is modified, the duplicate sample must also be updated accordingly. Difference from 'original sample': The original sample is the sample sent or confirmed for the first time, while the duplicate sample is its copy. Difference from 'sealed sample': A sealed sample is jointly signed and sealed by both parties and has legal effect, whereas a duplicate sample is usually retained unilaterally and has weaker effect. In disputes, a duplicate sample can serve as auxiliary evidence but is less authoritative than a sealed sample.