
Densen Customized Alloy Steel S355jr Inner Cylinder Machining Welding for Hydraulic Equipment. Custom Design Support: Supports Pro-E, UG, SolidWorks, AutoCad, and PDF design inputs for tailored solutions. High Precision Machining: Maintains repeated tolerance of 0.02mm using CNC centers and precision inspection instruments. Wide Weight Range: Handles single components from 1kg to 50 tons for various manufacturing needs. Strict Quality Control: Includes material, dimension, performance tests, and 3rd party inspection services. Multiple Certification: Certified with RoHS, ISO 9001:2000, ISO 9001:2008, and ISO 9001:2025 standards. Extensive Experience: Over 25 years of manufacturing and 10+ years of exporting experience. Comprehensive Services: Offers casting, forging, stamping, welding, and machining under one roof. Global Market Reach: 100% products sold overseas with a customer base including Fortune 500 companies.