Product Description: 1. Product Name heavy duty single eye suspension truck parts volvo leaf spring 2. Application Mine locomotives, Trailers, Heavy duty trucks, Tractors, and so on. 3. Width 60 - 150 mm 4. Thickness 20 - 60 mm 5. Pieces 1-8 pieces as required 6. Components  Leaf, clip, center bolt  bushing, tip insert, nuts 7. Color  Red, shinning black, dark black, grey 8. Materials  SUP9, SUP11, 52CrMoV4, 50CrVA or as your required 9. Quality level  Excellent quality for international market, made in China, Xuanli Brand 10. Certificate  GB/T 19844-2005, JIS G48001-2005 We can design and manufacture any springs for you as long as you can offer a technical drawing.