... 2.Material: SUP7, SUP9, SUP9A,SUP11A 3.TS16949,COC,CIQ,SONCAP China WONDEE 16710-01 Leaf Spring 1.Types of leaf spring ... leaf spring. 2.Thickness from 6 mm to 50 mm 3.Components: leaf,clip,center bolt 4.Color: red,shinning black ... certified to the ISO/TS16949 international system. China WONDEE 16710-01 Leaf Spring