Sinoascend Truck Parts Transmission Rear Axle Ring Gear for Benz 3553503039 21/28 Crown Wheel Pinion

Sinoascend Truck Parts Transmission Rear Axle Ring Gear for Benz 3553503039 21/28 Crown Wheel Pinion. Premium Material Composition: Constructed from 20Crmo, 40Crmo, 42Crmo, and 20CRMNTI for enhanced durability. Advanced Heat Treatment: Carburized to achieve tooth surface hardness HRC58-62 and core hardness HRC33-48. Comprehensive Quality Control: Each product undergoes pre-production sampling, final inspection, and individual testing. Brand Customization Available: Customers can customize the brand on unified packaging and cartons. Robust Packaging Solution: Features inner bags, foam protection, and thickened wooden boxes for heavy goods. Direct Factory Pricing: Manufacturer sells directly with prices lower than market value. Sample Service Offered: Free samples available, though freight costs are not covered. Fast Delivery Options: 3-7 days for stock items, 20-30 days for non-stock based on quantity.