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Exoneration and exchange
1). Client (party a) unilateral causes selection, purchase number errors, caused by the exchange request, will not be accepted.2). About exchange: the contract goods belong to custom-made products, product technical performance decision can't replace products do not belong to the replaceable range.
After return within 7 days
1) not ordering goods such as due to the quality cause is not able to use, and can't through technology purification to acceptable state, the customer shall be entitled to require the derun return; 2) ordering goods such asoccurrence quality reason, derun provide the subsequent purification, but does not offer any return service.
 
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