сальник весной для автомобиля

oil seal spring Unfold length of the spring:15mm-4500mm Wire diameter:0.15mm- 1.0mm Core-column joints with the core of spiral spring, the performance is better than traditional spring-shaped connector. We can also produce oil seal spring according to your specification. The primary quality index of oil seal spring: 1. The length tolerance:± (wire diameter × 1.5) 2. Wire diameter tolerance:±0.01mm 3. Winding diameter tolerance:±0.05mm 4. Stretching strength:link fixed spring two ends can resist the elongation of 10% over the length of the spring. 5. Exterior: a. No traces of oxidation or contamination. b. The spring joined two ends do not form the "8" shape in the weak external forces. c. Lap winding do not appear ups and downs