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Dongguan Xinxuhong Industrial Co., Ltd.
{0} years
Guangdong, China
Main categories: constant force spring,power spring,Door closer,Car vent clips

 

 

 

 

 

 

 

 

Automatic Door Closer 

 

Fixed force spring for elevator: Fan lifting spring is a type of fixed force spring used by professionals to adjust the amount of electric fans. Its basic principle is to use the tensile resistance of the spring to easily keep the fan in the desired position. Compared to traditional manual adjustment, modified spring is easier to apply and more convenient to operate.