... Type:Conventional,Parabolic,Z-type Specifications of leaf spring1.Leaf spring for trailers 2.Material:60Sin2Mn 70*13 3.Type: ... Conventional,Parabolic,Z-type,Galvanized 4.Certificate:ISO,TS169The leaf spring is used in Scania truck. No.1377670Auto leaf spring60Si2Mn( ... We can produce all kinds of heavy duty automobile spring, bus leaf spring,air spring and other leaf springs according to our customers ...