
High Quality Sales Engine Valves for Detroit S60 23501576/8929589/23529629/23501577/8929590. 29 Years Manufacturing Experience: Established expertise in engine valve production with ISO9001 and TS16949 certifications. Premium Material Selection: Utilizes high-quality special valve bar materials like 4Cr9Si2, 21-4N, and GH751. Advanced Surface Treatment: Features chrome plating, soft nitriding, and double metal welding for durability. Flexible Customization Options: Offers full, minor, and sample-based customization for designs and requirements. Fast Delivery Time: Standard delivery within 3-5 days for orders. Comprehensive Quality Inspection: 100% visual and functional inspection of finished products with traceable raw materials. OEM and ODM Services: Provides both OEM and ODM services with dedicated R&D engineers. Low Minimum Order Quantity: Accepts orders starting from just 1 set.