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Model NO. | Outer size of floor spring | reference size of door plank | Max withstanding weight |
S-220 | 270*125*52mm | 1000*2100mm | 75-90kg |
Element largest open 105degrees, 90 degrees bidirectional position, cloesing speed is Two-stage,built-in reducing valve., it can adjust closing speed at different temperature, ensure that the using time is more than 200,000.
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floor spring floor hinge manufacturing factory