floor spring

الوصف

Technology Data&Funcation ●All floor springs have passed the opening-closing tests over **0, **0 times and meet the safety standards for application. ●The built-in relief valves are equipped to prevent the floor springs from damage or oil leakage due to external strong pressure or door closed in the strong wind. ●the hydraulic lubricating oil I added inside with the freezing point less than**0?, suitable for installation and use at all weather. ●The door opening degree is up to **0?and optional for any direction. ●The *0?stop set or non-stop set can be choosen. ●The door closing speed control valves of **0?to 0?are available for different door closing effects. ●The universal design is fit for opening the right or left-hand and one or two-way door ***** complete sets of fittings are avaiable in different methods. ●The adjustable opper pivot is specialy equipped for easy install ation and convenient abd accurate adjustment. ●The loadbearing is *****0kg, the biggest door width ********0mm, suitable for all kinds of door leaves.