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High-Strength 17-4pH 2205 S31803 Alloy Steel Drive Shaft. High-Strength Alloy Material: Made from 17-4Ph, 2205, S31803, 4130, 4140, 4340 steel for superior strength. Comprehensive Quality Control: Includes UT, MT, CMM, hardness, and metallographic analysis testing. Multi-Industry Application: Suitable for marine, automotive, agricultural, construction, and medical sectors. Custom Forging Service: Supports custom forging steel shafts with ISO 9001 certification. Long Shaft Capability: Max length up to 9000mm for large-scale industrial drive shafts. Global Logistics Support: Includes local logistics, clearance, and maritime transport services.