Automobile wheel studs are generally made of high-strength steel. The strength grade of the screw is printed on the head of the wheel bolts, including 8.8, 10.9 and 12.9. The higher the value, the higher the strength.
Air Shocks Front for Pheaton for Vw is a complex system consisting of an air compressor, accumulator, control computer, body height speed sensor, and air spring extension acceleration sensor.