Liaoning Deren is a family-owned group company since 2011.Deren business is divided into two parts:Deren Door Division and Deren Heavy Duty Machine Division. Deren Door Division is professional manufacturer to design, research and production for doors and gates automation and access control products. Our products now include: Automatic doors: sliding doors,semi-automatic sliding doors,glass sliding doors, swing door, underdrive swing doors and  telescopic sliding doors. Access control system and turntiles include tripods, swing gates, sliding gates, waist-height turnstiles, full height turnstiles. Gate openers...