1. Our company strictly produces new products in accordance with international quality system standards, with a factory qualification rate of 100% 2. All customers of our company have the right to request relevant information about the product, and the company guarantees to objectively and fairly introduce the production technology and manufacturing process of this product 3. All users of our company will be guided in installation. If technical guidance is needed, the company will provide timely services and assistance 4. If our company's users discover any quality issues with the product during installation, we will replace it free of charge 5. For all orders placed by users, our company guarantees timely delivery and installation guidance. In case of special circumstances, our company will notify the users 6. Ensure to arrive at the customer's site within 5 hours in Shenzhen, Dongguan, and Huizhou regions and 8 hours in Guangdong province upon receiving a user's fault call; Arrive at the scene within 48 hours in other areas and solve the problem within 12 hours. The company's customer service has 24-hour telephone service, with dedicated engineers handling user calls to ensure that users receive timely technical support while using the equipment