Aluminum alloy hydraulic door closer hinge for 25-45kgs door

Aluminum alloy hydraulic door closer hinge for 25-45kgs door     Product Description   hydraulic door closer hinge   Features Door closer with Maximum door width :0.9M Door closer suitable for the door weight 30-45kg With 90 degree positioning. Adjustable rate closed sections 180 Degree  - 20 Degree, adjustable intensity latching segment 20 Degree - 0 Degree. High quality ,Aluminum Alloy materail design Two independent control of two hydraulic valve closed , latching speed, hydraulic control for the whole paragra Door closer fit for all kind of doors, Wooden door, Glass door,Metal door. Aluminum alloy electric door closer   hydraulic door closer hinge  details     Company Information   Shanghai Gengda Electronic Technology Co., Ltd. is founded in 2009.We are a private enterprise professionally engaged in security system products in wordwide.Research,production,market and service are integrated one unit.Our categories are tripod turnstile,flap turnstile,swing turnstile,access control system,smart card,electronic lock,control board,power box,road barrier, Anti-static tester and all accessories.What a surprise,we are searching new security field actively. By modern operation and management mode,efficient and scientific product engineering method and quality administration system,we control strictly all links of projects,including program design and proof, project progress,and system test.Then,our products and service are in the top grade in the world.