艺高地弹簧 1、机体采用优质防冻液压油，确保在不同温度下机件运转平稳、灵活。 Filled with high quality anti-icing hydraulic oil,ensuring smooth and flexible operation of mechanical parts at different temperatures. 2、门开启角度高达106度方向选择。 Door openning angel at 106°at your option. 3、可选用90度有止动装置或无止动装置。 90°Stop device or non-stop device at your option. 4、90度至0度两个闭门速度调控阀，以配合不同闭门效果。 With double closing speed adjusting valves at 90°~0°to match different closing purposes. 5、通用型设计，适合左右手及单双开启门扇，各使用方式均备有完整配件。 General designed is suitable for openning doors with left/right hand and single/double opening,accessories are available for each means. 6、特设可调式与不可调式上枢轴，安装简易，调整方便、精确。 Adjustable and unadjustable axis is designed to install and adjust easily & pcisely.