28t Factory-Direct Precision Single Point for Semi-Trailer Leaf Spring

28t Factory-Direct Precision Single Point for Semi-Trailer Leaf Spring. High-Strength Material: Made from premium alloy spring steel (60Si2Mn, Sup9, etc.) for exceptional load-bearing capacity. Extended Fatigue Life: Triple-strengthening process including quenching, tempering, and shot peening ensures durability. Anti-Corrosion Treatment: Multi-layer anti-corrosion treatment provides rust resistance for demanding operating conditions. OEM/ODM Support: Full customization support for specific vehicle models, including color and specifications. Large Inventory: Extensive inventory exceeding 5,000 tons ensures fast delivery and supply stability. Quality Assurance: 100% inspection before shipping with test reports available; ISO/TS16949 and CE certified. Competitive Pricing: Bulk purchasing available at preferential rates; unit price improves with orders over 25 tons. 1-Year Warranty: Comprehensive 1-year warranty coverage for peace of mind and product reliability.