
High-Precision Cold Drawn Steel Tubes for Industrial Machinery. IATF16949 Certification: Certified for automotive and motorcycle parts with superior quality standards. Customizable Dimensions: Outer diameter 15-80mm and thickness 1-20mm available for specific needs. High Precision Cold Drawn: Seamless carbon steel tubes with oiled surface for hydraulic and machinery use. Wide Material Selection: Available in various grades including 10#, 20#, 45#, 40Cr, and 42CrMo. 100% Finished Inspection: Strict visual and function inspection by 5 QA/QC inspectors before packing. OEM/ODM Support: Full customization from samples or designs supported by 3 R&D engineers. Free After-Sales Service: Comprehensive free warranty and after-sales service for all products. Multiple Standard Compliance: Meets GB, ASTM, ASME, DIN, EN, and JIS international standards.