Quality

Our company's relevant certificates are as follows:

1. 
   Name: Certificate of Quality Management System Certification
   Issued By:CSU International Certification Co., Ltd.
2. 
   Name: Certificate of Environmental Management System Certification
   Issued By:CSU International Certification Co., Ltd.
3. 
   
   
   Name: Certificate of Occupational Health and Safety Management System Certification
   Issued By:CSU International Certification Co., Ltd.

1. Name:A Terminal Confirmation Device and Portable Equipment Based on 5G Communication
   Issued By:National Intellectual Property Administration (CNIPA)
2. Name:A Position Confirmation Device for 5G Terminals and Vehicle-Mounted Equipment
   Issued By:National Intellectual Property Administration (CNIPA)
3. Name:A Data Acquisition Device for 5G Terminals
   Issued By:National Intellectual Property Administration (CNIPA)

4. Name: Method and System for Coordination Between Cellular Network Small Cells and WLAN Routers

   Issued By: National Intellectual Property Administration (CNIPA)

5. Name: A LBT Method Considering Both Uplink and Downlink in an LAA System

   Issued By: National Intellectual Property Administration (CNIPA)

6. Name: A Method and System for Individual Call Establishment in Distributed Fault-Weakening Trunked Communication

   Issued By: National Intellectual Property Administration (CNIPA)

7. Name: A Method and System for Floor Authorization in Distributed Fault-Weakening Trunked Communication

   Issued By: National Intellectual Property Administration (CNIPA)

8. Name: A Method and System for Constructing an Ad Hoc Network Based on a Cellular Network

   Issued By: National Intellectual Property Administration (CNIPA)

9. Name: A Method and System for Generation and Adjustment of Group Call Areas in a Broadband Trunked System

   Issued By: National Intellectual Property Administration (CNIPA)

10. Name: A Method, Apparatus, Electronic Device and Storage Medium for Acquiring C-RNTI

    Issued By: National Intellectual Property Administration (CNIPA)

11. Name: A Network Transmission-Based Remote Control Device

    Issued By: National Intellectual Property Administration (CNIPA)

12. Name: A Portable Signal Acquisition Device Compatible with 4G and 5G

    Issued By: National Intellectual Property Administration (CNIPA)

13. Name: A Method, Apparatus, Electronic Device and Storage Medium for Searching for the Second-Strongest Cell

    Issued By: National Intellectual Property Administration (CNIPA)

1. Name: 45G Handheld Signal Strength Monitoring and Control System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
2. Name: 5G Active-Passive Integration Monitoring and Control Platform [Abbreviation: 5G Active-Passive Integration] V2.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
3. Name: 45G Active-Passive Integrated Monitoring and Control System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
4. Name: 5G Passive Monitoring and Control System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
5. Name: 5G Active-Passive Integrated Monitoring and Control System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
6. Name: 5G Active Monitoring and Control System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)
7. Name: 5G Drive Test Information Acquisition System V1.0
   Issued By: The Copyright Administration of the People's Republic of China (NCAC)

1. Name: High-Tech Enterprise Certificate
   Issued By: Department of Science and Technology of Shandong Province

WIN&SD has always adhered to the "customer-centric" business philosophy. With strong technical strength, advanced production equipment and rich manufacturing experience, we ensure product quality, and supplemented by timely after-sales service, we are deeply trusted by customers.