After Service::
　　    If you have any question for products' quality we provide,please let me know in two weeks.If products are verified disqualification and are not welded,we will exchange a purchase.Of course,you should provide me report of quality verifier by government.If you have not any quality problem in one month,we will confirm that the goods are high quality.And any other matter we do not exchange goods.

  For your reasonable exchange require,our company do feed back ASAP,we must give you a satisfactory answer.