Payment orders can be delivered within 24 hours, Not shipped on weekends, large items by logistics transportation.If you need specific express, please communicate with customer service.Please check the goods before receiving them. If the products are damaged due to express delivery, you can refuse to sign and timely contact the customer service. If you have any questions about the goods, please contact us to solve as soon as possible.

The warranty method:

1. Within one week after receiving the mechanical parts, they can be returned or replaced on the condition that their appearance does not affect their re-sale;

2. IIf the optical components have not been unpacked within one week after receiving the goods, they can be returned or replaced after passing the light inspection of our company. If the optical components have been unpacked or used for more than one week, Not because of quality problems, they will not be returned after being sold.

3. The warranty period of mechanical parts is one year for product quality problems caused by materials or processes, which shall be repaired or replaced free of charge by the company. Artificial damage is not included in the scope.

4. Dispute resolution: in case of any dispute, both parties shall solve it through friendly negotiation.If the two parties cannot reach a settlement through negotiation, either party may resolve the dispute through litigation in the local people's court.

5. Freight settlement: if the customer proposes to refund the freight due to improper product model selection, he/she shall pay by himself (Express that does not accept cash on delivery).The company will bear the return shipping costs incurred by the return of goods due to product quality problems.

     Sincerely hope to get each customer's understanding and cooperation, and look forward to working with you to achieve better results!