(1) buying and selling by seller's sample. The samples provided by the seller are called "seller samples". Buying and selling with the seller's sample is the quality basis for delivery agreed by both parties. In export transactions, the seller should pay special attention to the representativeness of the samples. At the same time, when the seller sends samples to the seller, it should consider keeping "duplicate samples" for checking when delivering or handling disputes.
(2) buying and selling according to the buyer's samples. The samples provided by the buyer are called "buyer's samples". Buying and selling by the buyer's sample is the quality basis for delivery as agreed by both parties to the transaction. It is customarily called "sample transaction". When closing a transaction based on the buyer's samples, if it is difficult to achieve the consistency of the samples due to manufacturing technology or other reasons, we can consider concluding flexible contract terms, such as "the quality is roughly the same as the samples". In addition, the seller should also indicate that the other party is responsible for any three rights problems caused by the buyer's samples.
(3) buying and selling by equivalent samples. Equivalent sample means that the seller copies and processes a similar sample according to the sample from the buyer and submits it to the buyer for confirmation. It can also be called "back sample" or confirmation sample. Buying and selling by equivalent samples is actually the quality of the seller's future delivery-"equivalent samples" shall prevail, that is, "buying and selling by buyer's samples" shall be changed into "buying and selling by seller's samples", so that the seller can strive for the initiative.
the basic requirement of buying and selling by sample is that the delivery quality of the seller must be exactly the same as the sample. In order to avoid unnecessary disputes during the performance of the contract, the sample can be sealed when necessary. The specific method is as follows: the issuing agency takes several samples of the same quality from a batch of goods, burns wax or lead seal on each sample, and both parties to the transaction sign or seal the seal for the use of the parties to the transaction. At the same time, keep a copy of the bus license authority for inspection. The sample can be sealed by the sender, or the buyer and seller can seal it together.