u适用于大门扇宽度为800-1100mm的单向开启门
u精度油封，防止漏油
u优质球墨铸造机体，以优质光亮漆保护
u两个液压阀独立控制两段闭门速度，作全液压控制
u可调速度闭门段180°-20°，可调力度闭锁段20°-0°
u二段速度调节，最大开启角度180°
u带止动功能（90°定位及180°无定位）
u标准颜色：金色、银色、古铜色或根据要求做颜色
uSuitable to unidirectional unlocking door with the width 800mm-1100mm of door leaf and max.
uFine oil seal to prevent leakage of oil.
uQuality casting aluminum alloy body protected by quality varnish.
uTwo hydraulic valves control two closing speed independently and hydraulically.
uThe speed-adjustable closing section is 180°-20°and the force-adjustable locking section 20°-0°.
uMax opening angle for two-speed adjustable is 180°.
uWith locking function (position at 90°and non-position at 180°.
uNormal color: Golden, silver, bronze or any color required.
