Ningbo Puppet Steel Co., Ltd. is a premier Steel Sheet Manufacturer | Cold Rolled, Hot Rolled & Galvanized Steel Supplier committed to providing high-quality steel products and customized metal solutions for customers worldwide. Located in Ningbo, China, Puppet Steel operates advanced processing and manufacturing facilities equipped with modern production lines and precision quality inspection systems.
The company specializes in a comprehensive range of metal items, encompassing cold rolled steel sheets, hot rolled steel sheets, galvanized steel sheets, galvalume steel sheets, prepainted steel sheets, carbon steel sheets, structural steel sheets, and specialized OEM/ODM Aluminum Coils and customized metal processing solutions tailored to strict global tolerances.
Serving diverse sectors including construction, infrastructure, manufacturing, automotive, energy, home appliances, and industrial equipment, Puppet Steel builds long-term partnerships with contractors, distributors, wholesalers, and fabricators across North America, Europe, Southeast Asia, and the Middle East.
The global transition towards sustainable architecture, electric vehicles (EVs), and renewable energy infrastructure has drastically accelerated the demand for high-performance aluminum coils alongside carbon and stainless steel sheets. Key trends include the adoption of ultra-thin gauge precision rolling, advanced anti-corrosion fluorocarbon (PVDF) and polyester coatings, and closed-loop recycling capabilities that minimize carbon footprints across global supply chains.
International industrial buyers now demand rigorous supplier credentials, multi-tier quality testing (such as salt spray corrosion resistance testing, tensile strength analysis, and spectrometry testing), and flexible OEM/ODM contract terms. Puppet Steel addresses these critical B2B sourcing challenges by offering end-to-end customization—from raw alloy selection, temper designation (e.g., H14, H24, O-temper), precision slitting, to custom export seaworthy packaging.
Our production facilities utilize state-of-the-art cold-rolling mills, tension leveling lines, and computer-controlled annealing furnaces. This ensures tight gauge tolerance (within ±0.01mm), superior surface finish (2B, BA, Mirror, Embossed, or Color-Coated), and optimal mechanical properties required for high-speed stamping and roll-forming operations.
We deliver comprehensive macro-solutions tailored to regional climates and building codes. Whether supplying seismic-resistant structural plates for Middle Eastern infrastructure or marine-grade anti-corrosive coils for Southeast Asian coastal architecture, our technical team provides localized engineering consultancy and rapid sample dispatch.
Every batch produced by Puppet Steel adheres strictly to international standards including ASTM, EN, JIS, and GB. Accompanied by full Mill Test Certificates (MTC) and third-party inspection reports (SGS, BV, TUV), we guarantee complete traceability and regulatory compliance for overseas import markets.








Ningbo Puppet Steel provides a vast selection of materials, including 1000, 3000, 5000, and 6000 series aluminum coils, as well as cold-rolled (SPCC, SPCD), hot-rolled (ASTM A36, Q235B, S355), galvanized (GI/GL), and stainless steel (304, 316L) sheets tailored to exact customer specifications.
Yes, we offer comprehensive customization services. Thickness ranges from 0.2mm to 50mm, with precision slitting for widths and custom surface finishes such as mirror polish, brushed, embossed, color-coating (PPGI/PPGL), and anodized treatments.
Our manufacturing processes adhere strictly to ISO9001 quality management systems. Products comply with international standards such as ASTM, EN, JIS, and GB, and are shipped with comprehensive Mill Test Certificates (MTC) and third-party inspection options like SGS or BV.
Standard production lead times range between 15 to 25 days depending on order volume and processing requirements. All coils and sheets are secured with standard seaworthy export packaging, including waterproof plastic film, moisture-proof paper, steel strapping, and sturdy wooden pallets to prevent transit damage.