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floor spring(one of biggest brand in China,Justor,JU-80) excellent quality
floor spring(one of biggest brand in China,Justor,JU-80) excellent quality

Minimum Order: 0
Quality/Safety Certification: 0.00

1.main body material: wrought iron
2.planque is made of 304 stainless steel
3.calibration is available for the floor spring.



1. Adopting double-spring design, opening lightly and smoothly,prolonging service life.

2. Inside pressure reducing valve to prevent the destrution on occasion that the door closed by strong pressure or wind force

3. General design, suitable for left and right hand to open the door in single and both sides.

4. Use low temperature frostbite hydraulic oil,ensuring the normal door-closing speed when the temperature is forty degree below zero

5. Cement container, height,width and length can be adjustable which is convenient for assembling


 304# stainless steel cover plate


Technological data

Closing force


Suitable for maximum wide door leaf      


The maximum bearing weight


The door closing speed is controlled by the adjusting valve

Operating angle

90 Degree


About 6.5kgs

Container size

Length:30.8cm Width:10.8cm Height:4.20cm

The products have passed Chinese national QB/T3884-99 standard

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