
YUAN SINE SPRING has been operating in a pragmatic manner since its inception. YUAN SINE SPRING's compress spring series include multiple types. The tests for YUAN SINE SPRING heavy duty torsion springs cover a wide range. It has to undergo tests include raw material testing (e.g. glow wire test, needle flame), chemical hazards testing, and current leakage testing. Its load of each contact point is even when the product is stressed. extension springs has a high color rendering index and good color reproduction. It is not easy to cause color distortion. Moreover, it effectively relieves visual fatigue visual fatigue and reduces myopia possibility.
our team's mission is to focus on developing the higher quality spring wire. Inquire online!