... , SUP11,50CrVA 3. Size: 6*40~20*15 aisi 6150 spring steel 1. Material: 65Mn, 60Si2Mn, SUP9, SUP9a, SUP7, SUP11, 50CrVA ... and chains for car and agriculture machines. Anchor plate. Laminated leaf spring.6. Package: Standard export packing. Coverd by PP paper outside ... .90-1.200.10-0.200.0300.030 aisi 6150 spring steel