After-sale service
Langtong Company adheres to the service principle of "reputation first, integrity and practicality", and adopts a rigorous, scientific, and efficient ISO9000 quality management service process to create a "Langtong Service Brand". For a long time, Langtong people have been committed to providing high-quality and comprehensive after-sales service, placing user satisfaction as the top priority. We always believe that the soil for the survival of enterprises is the users. Only the success of users can guarantee our success. In order to better serve customers, improve our work day by day, strengthen contact and communication with customers, handle customer inquiries and complaints, repair and maintenance services, introduce products and conduct friendly visits to customers, continue our good cooperative relationship with customers, provide ideal solutions, and adhere to the principle of "superior quality, star service".

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