Samples: We are happy to send samples to our customers for testing, and the express fee and sample fee are paid by customers. Logistics and distribution: To send samples or small quantities, we generally use express delivery; for bulk goods, we generally use common logistics. If there is a customer request or is not within the scope of delivery, we also use other couriers or freight companies, and also support customers to pick up the goods at home. Logistics costs are generally paid by the customer, and payment by both parties or other methods can be negotiated as appropriate. Sign for inspection: When you sign for the goods, please confirm that the outer packaging of the product is intact, and check in person whether the appearance and quantity of the product are consistent with your order. If there is any problem, please take a photo and refuse to accept it directly, and contact online customer service in time; if there is no problem with the product, the buyer refuses the visa himself, and bears the round-trip cost; generally: the crossed price: the crossed price may be the sales guide price of the product or the sales that the product has been displayed Prices, etc. are not the original prices and are for reference only. Uncrossed price: The unmarked price is the price listed on Alibaba China. The specific transaction price changes depending on the product participating in the event, or due to the user's use of coupons, etc., *The price on the order settlement page shall prevail. In the event warm-up state: Crossed price: The crossed price is the sales list price of the product in the current event warm-up state. It is not the original price. The specific transaction price may change due to the user's use of coupons, etc., *The price on the order settlement page shall prevail. Uncrossed price: The unmarked price may be the event price of the product to participate in. It is for reference only. The transaction price at the time of the specific event may change due to the user's use of coupons, etc., *The price on the order settlement page shall prevail at the end of the event. Under the Promotion Status: Buyers of this product (except for some specifications) can enjoy the discount price of the Group Up Discount Campaign during the Group Spell Up Discount Campaign (this price is more favorable than the price of the Group Fight Daily Event during the same period). *Note: The foregoing instructions are valid only when price comparisons are available. If the merchant separately explains the crossed price, the merchant's statement shall prevail.