Automatic silent door closers and heavy duty for 60-80kg door DH-B8001C

Our company is a high-tech enterprise. We have been specialized in the R&D, production and marketing of Access Control Products. Products include Hotel Locks, Fingerprint Locks, Keypad Locks, Electromagnetic Locks, Electric Locks, Electric Bolt Locks, Power Supplies for Access Control, Access Controllers, Access Control Boards, Access Readers, RFID Cards, Exit Buttons and Switches, Time Attendance Access Controls, Door Closers, Fingerprint Access Controllers, and C...