leaf spring 1.50CrV4,55Cr3,60Si2Mn, Sup9,SUP 10 2. ... 4. USD 1.2---2.1/KG Leaf spring/parabolic rolling machine/conventional leaf spring 1. Price:USD1.0-1.9/KG2. ... After market6. Yearly turnout: 10000tonsSDGT leaf spring factory could produce conventional spring and parabolic spring,and Z leaf springs with its advamced machines and ... including European, Africa, Asia and South America etc. leaf spring