After the completion of the anechoic chamber, Changchuang Technology mainly provides the following after-sales services:

1. Provide your company with complete technical data after completion: a complete set of design drawings, main equipment instructions, etc.

2. Provide technical training for users' operation and maintenance personnel free of charge, so that the personnel participating in the training can master the operating procedures of the equipment and be able to repair and maintain normally.

3. Fixed shield and absorbing material are guaranteed for 5 years free; The free warranty of PSD, CCTV system, filter, antenna tower, turntable, dual equipment position controller, etc. is 2 years.

4. We will provide after-sales service to customers as soon as possible for problems arising after the establishment of the darkroom. The company has full-time technicians in after-sales service organizations, ready to provide fast and satisfactory after-sales service at any time. The user shall notify the supplier in writing within 15 days after finding the problem and describe the problem in detail. The general problem shall be answered immediately and the difficult problem shall be answered within 24 hours. Spare equipment shall be provided for equipment that cannot be repaired within 3 days. If equipment or accessories need to be replaced, they shall be repaired within 15 days. Provide reliable guarantee for the normal operation of your company's engineering facilities and equipment.

5. Within the warranty period: free of travel expenses, staff salaries and accessories.

6. The warranty does not cover the damage caused by the user's failure to operate according to the seller's operation manual.

7. Provide lifelong paid maintenance service after the warranty period.