After-sales service policy: Professional technical guidance. 4 hours: Quick response to customer complaints. Temporary solutions provided within 12 hours. Formal written reports given within 48 hours. One-on-one communication through a professional quality technical window; 100% customer satisfaction guaranteed. Service process: Feedback acceptance -> Timely response -> Timely resolution. After-sales service hotline: +13428798595; +13590346297. After-sales service email: 370822815@qq.com
