Patents&Certificates

ZC Certificates

ZC Steel holds multiple certifications and technology patents in OCTG and line pipe manufacturing, ensuring superior product quality and reliability. With continuous investment in advanced production and R&D, we deliver high-performance steel pipes that meet the evolving needs of the oil, gas, and energy industries.

Additionally, ZC Steel is API, ISO, and CE certified, demonstrating our excellence in product quality and management, and guaranteeing compliance with international standards for global projects.

Mill Test Certificate

Quality Control Plan

Third Party Inspection