
YUAN SINE SPRING is strong enough to provide the most thoughtful service and the top compress spring. YUAN SINE SPRING produces a number of different product series, including extension springs. During the production of YUAN SINE SPRING large extension springs, its LED light is tested for high-voltage leaks, power consumption, and power factor (efficiency). As a mechanical part, it uses elasticity to work. Its screen is made of liquid crystal display material and is large enough for users to write while protecting users' eyes. The product features good toughness and is not easy to break.
As a company bears social responsibility, we aim to conserve resources and minimize our environmental impact in all of our activities.