GBF-840A Floor Spring Door Closer
Suitable for : all metal & steel & glass door
Suitable for : all metal & steel & glass door
Have passed more than 300,000 times Opening and closing tests.
Technical Standard : is conform with QB/T2697-2005 stabdard
Door openning angle :umost 116 degrees
Design : General
Special Design : Adjustable axis, install and adjust easily &precisely
Speed Adjustment : 110 degrees – 0 degree
Built-in relieve valve
Body : Apply with the quality anti-icing hydraulic oil .