... high quality products for you. We hope we can provide spring steel with the best price and high quality for you ... : 2-8m, according to your requirements. 3, Surface: Smooth plain; Double grooved. 4, Standard: GB, ASTM, JIS 5, Usage: Springs and ... chains for car and agriculture machines. Anchor plate. Laminated leaf spring. Material: Carbon Steel Round Bar 65Mn, 60Si2Mn, SUP6, 9260etc rolled ...