For spring stiffness, such as a total of 11 pieces of order. The top three specifications for 70 * 9, specifications for 70 * 8, 4 to 10 specifications for 70 * 15, 11 material are 60 si2mn, length of 1145 plate spring loading, front end lug installed aperture Φ 25, after the end of the lug installation aperture Φ 25;

Such as two levels of spring stiffness, a total of 15 pieces. Nine main spring specifications don't 70 * 10, six pieces of pay spring specifications for the first four piece 70 * 8, the main pay spring material are 60 si2mn, length of 1300 plate spring loading, front end lug installed aperture Φ 25, after the end of the lug installed aperture Φ 25