
Brass American Style Cylinder. Premium Brass Material: Constructed from high-quality Brass HPB59-1 for durability and corrosion resistance. High Security Design: Features 6-pin mechanism with stainless steel springs for enhanced security. 5-Year Warranty: Comprehensive 5-year guarantee covering mechanical defects and quality issues. International Certifications: Passed ISO9001:2015, BSI KITEMARK, and EN1303:2005 cylinder certification tests. Custom Backset: Backset is customizable to meet specific door installation requirements. OEM/ODM Support: Full OEM and ODM services available with 5 dedicated R&D engineers. Professional Manufacturing: Over 20 years of experience with imported high-precision CNC and detection equipment. Strict Quality Control: Rigorous inspection process including incoming, in-process, and pre-delivery checks.