Production notes, industry updates, and a little colour on what we’re making this month.

Navigating letter of credit LC terms for steel coil order is critical for international buyers sourcing from China. In 2026, with fluctuating raw material prices and stringent quality standards, understanding LC terms protects both buyer and supplier. At ChinaCNU Steel, our Qingdao factory has exported galvanized steel coil, PPGI coil, and GI coil to over […]
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When importing steel coil—whether it is PPGI coil, GI coil, or galvanized steel coil—choosing between CIF vs FOB for steel coil import is the single most critical decision that determines your total landed cost, risk exposure, and delivery timeline. For buyers sourcing from China, understanding these two Incoterms is not optional; it is the difference […]
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When sourcing galvanized steel coil inner diameter 508 vs 610, buyers often face a critical decision that impacts handling, processing, and shipping costs. The inner diameter (ID) of a GI coil determines compatibility with uncoilers, tension levels during slitting, and overall logistics efficiency. This guide compares 508mm ID and 610mm ID hot dip galvanized coil […]
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When sourcing high-performance roofing and cladding materials, the color coated aluzinc steel coil stands out as a superior alternative to traditional galvanized options. Combining the corrosion resistance of aluzinc (55% aluminum, 43.4% zinc, 1.6% silicon) with a durable paint finish, this product—often called PPGL coil—delivers extended service life in harsh environments. At ChinaCNU Steel, our […]
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When sourcing chromated vs non chromated galvanized coil for your next project, understanding the difference in surface treatment is critical to ensuring long-term performance and cost efficiency. In 2026, global buyers are increasingly asking for GI coil with either chromate passivation or chromate-free alternatives, driven by stricter environmental regulations in Europe and North America. This […]
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When sourcing galvanized steel coil oiled vs unoiled options for your manufacturing or construction projects, the decision directly impacts corrosion resistance, fabrication efficiency, and long-term cost. At ChinaCNU Steel, we produce both variants in our Qingdao factory under ISO certified lines, exporting to 80+ countries with 15+ years of experience. This guide provides a data-backed […]
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When your roll forming line demands consistent material flow and tight tolerances, narrow width PPGI strip for roll forming is the engineered solution. This prepainted galvanized steel coil is slit to exact widths—typically 30 mm to 600 mm—allowing seamless feeding into roll formers for roofing, wall cladding, gutters, and trim profiles. As a leading PPGI […]
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Finding a dependable slit galvanized steel strip supplier is critical for manufacturers requiring precise widths, consistent zinc coatings, and reliable delivery schedules. As a leading galvanized steel supplier based in Qingdao, ChinaCNU Steel has served over 50 countries for more than 15 years, offering ISO certified products with strict quality control. Whether you need narrow […]
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When sourcing steel for industrial manufacturing, construction, or roofing applications, understanding the distinction between galvanized steel coil vs galvanized steel sheet is critical for optimizing cost, logistics, and fabrication efficiency. Both products start as hot dip galvanized coil with a protective zinc coating, but their form and processing differ significantly. As a buyer in 2026, […]
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When selecting a galvalume corrugated sheet for warehouse roof projects, industrial buyers prioritize durability, corrosion resistance, and cost efficiency. In 2026, the global demand for aluzinc steel coil continues to rise, driven by large-scale logistics centers and manufacturing facilities. A galvalume corrugated sheet for warehouse roof delivers exceptional performance in high-humidity environments, outperforming traditional galvanized […]
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