Warranty: It means that the product quality should meet the standards and be guaranteed. In fact, warranty is the quality assurance of products, and it is the basic attribute that any product should have. We can't think that warranty is to provide lifetime warranty.

Warranty: refers to providing after-sales maintenance service guarantee, which can be provided in two ways: free and paid. Man-made damage that is not within the scope of the standard service policy agreed by the manufacturer shall be compensated; Services within the standard service policy are free of charge. Warranty: This item comes from the national "three guarantees" regulation, which means that the manufacturer provides completely free maintenance, but generally there will be detailed warranty instructions for different parts in the product. It can be understood that free warranty is equivalent to guaranteed repair. Guaranteed return and replacement: these two items also come from the national "three guarantees" regulations, which refer to the free return service provided by the manufacturer when the products encounter quality problems in the terms of return service within the specified period. Various after-sales service contents are often skillfully used by merchants, avoiding the legal constraints of the state, exaggerating quality and after-sales, and confusing publicity. In addition, consumers don't understand the concept, and the damaged and scrapped products after purchase naturally can't get the "ideal" service before purchase.