Providing customers with top-quality products and first-class services is our constant goal. Striving to meet the needs of customers is a top priority of corporate marketing. Adhering to the management tenet of centering on innovation and market orientation, we make the following service commitments.

1. Pre-sales Service
a. We will detail all relevant information and the quality of the products to the customers;
b. We will give talks on the assembly, installation, use and maintenance of the products.
c. We have set up a service hotline to answer various questions regarding the products.

2. In-sales Service
a. Customers coming to our company to buy products will be asked to fill in the customer service tracking card;
b. For newly developed customers, our marketing personnel will call them within one week after they received the product to ask about the acceptance situation, including whether the product quality meets the customer's requirements, the transport mode, packing condition, and other requirements of the customers.
c. For key customers, we will send personnel to visit them once or twice every quarter, seeking for their opinions and solving the problems they raise.

3. After-sales Service
a. If quality problems arise when customers use our products, we will reply within 24 hours after customer complaint received;
b. If the products have quality problems within the warranty period of 18 months, we will be responsible for refunding, replacement, and repair. After the warranty period, we provide high-quality paid services;
c. We have provided a sound online service system. If you have any problems about the product, such as the quality, use, and other related ones, you can raise these problems through online message or email. We will give you a satisfactory reply in the shortest possible time.

4. Identification of Service Conditions
a. Within the warranty period, if the problem is caused by the product itself, our company will provide free services;
b. Within the warranty period, if the product problem is caused by the customer, we will provide preferential paid services;
c. After the warranty period, if quality problems arise, we will continue to offer preferential paid services.