Yutong bus parts: 1.Model#: GA: 3E383 2.Material: Rubber and steel 3.CAA brand 4.long life span. Yutong bus parts:Technical date:Design height 300mm Deflection(Max height)440mmDeflection(Min height)150mmWorking stroke290mmLoading cap.at 3.0bar11.17knLoading cap.at 7.0bar31.65kn Yutong bus parts,rubber air spring