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Buyer's Notice Working hours Customer service is available online from Monday to Saturday, 08:00-21:00. For inquiries outside of these hours, please leave a message, and customer service will respond to you as soon as they are online. Transaction method For customers with large orders or those requiring customization, they can place an order and pay directly online, or contact the seller to negotiate and draft a relevant payment agreement. 2. If you need to learn more about the product first, you can directly order a sample or contact customer service for consultation. Express delivery 1. For small quantities, we use express delivery (default is Zhongtong); for large quantities, we use official direct shipping, depending on the situation. 2. If you have any other special requests, please contact customer service to make a note. Orders paid before 5:00 PM on the same day can generally be shipped the same day. After-sales standards 1. The product can be returned or exchanged within 7 days of receipt without any reason. For non-quality issues, the seller is not responsible for the return shipping costs under any circumstances.(This includes dissatisfaction with the product, damage caused by human error, etc.), custom-made items are not eligible for return. 2. Customers with long-term partnerships can accumulate a certain quantity and then send them back (the seller will bear the shipping cost for product quality issues). After receiving the items, our store will replace them with new ones before sending them out again. 3. The products sold in our store are directly from the manufacturer, offering low prices and high volume sales, with guaranteed quality.Most of the products in our store come with a 1-year warranty