HSY factory was established in 1998,one Leader professional supplier with Hi-Tech in Shenzhen of China. Specialized in Manufacturing RFID Smart Cards, RFID readers,RFID& Biometric time attendance and Access control security solution systems products. HSY Factory did: 1. Professional R&D department,can be offer you the OEM/ODM service; 2. Technique team support you to slove the testing issue and tell you more information about security system solution; 3. HSY provide training course ...