Import Corrugated Roofing Sheets — Buy in Bulk from Supplier in China

Corrugated roofing sheets from Shandong Huijin Color Steel Co., Ltd. are manufactured from prepainted galvanized steel with a base thickness of 0.3 mm to 0.6 mm, and wave profiles matching GB/T 12755-2008 standards. The sheets feature a zinc coating of 60 g/m² to 150 g/m² on both sides, with polyester-based paint finishes in standard RAL colors. Each sheet is formed into a 76 mm wave pitch with a 0.8 mm to 1.2 mm profile height, optimized for structural rigidity and water runoff.

The material composition follows standard cold-rolled steel grades such as SGCC or DX51D, with a tensile strength range of 270 MPa to 350 MPa. Surface treatment includes chromate passivation for corrosion resistance, and the paint layer is cured at high temperature to ensure adhesion and UV stability. These are typical industry practices for corrugated roofing in China, where cost efficiency and weather durability are prioritized over premium coatings like PVDF.

These sheets are commonly purchased by contractors in Southeast Asia, the Middle East, and Africa for low-cost residential and agricultural roofing. Buyers typically order in container quantities of 20 to 40 feet, with standard packaging in bundles of 20 to 25 sheets, strapped with steel bands and wrapped in waterproof film. Trade terms are usually FOB Qingdao or CIF destination port, with lead times averaging 15 to 25 days after deposit. Buyers should confirm the exact paint warranty period and color batch consistency before shipment.

Shandong Huijin Color Steel Co., Ltd. is located in Boxing County, Binzhou, Shandong, and operates as a manufacturer of color-coated steel products. The company is verified as an exporter with harbor-level trust status, indicating documented export history and compliance with basic customs procedures. The listing does not specify factory size, workforce, or years in operation, nor does it list any client names or certifications beyond general references to ISO and SGS.

Production appears focused on corrugated roofing and wall panels for export markets, with no indication of in-house R&D or proprietary coating technologies. The supplier does not respond to inquiries, suggesting limited customer service capacity. Buyers should treat this as a direct manufacturer without third-party quality audits unless independently verified.