news — from the mill.
Production notes, industry updates, and a little colour on what we’re making this month.
PPGI Coil Supplier for Southeast Asia Market – ChinaCNU Steel
Finding a reliable PPGI coil supplier for Southeast Asia market is critical for construction, roofing, and appliance manufacturers across Vietnam, Thailand, Indonesia, and the Philippines. As a leading prepainted galvanized steel coil exporter with 15+ years of experience, ChinaCNU Steel delivers ISO-certified, cost-effective solutions from our Qingdao factory. Our PPGI coil supplier for Southeast Asia […]
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Galvanized Steel Coil Weight Per Square Meter: Complete 2026 Guide
Understanding the galvanized steel coil weight per square meter is essential for accurate project budgeting, freight optimization, and structural design in the steel industry. Whether you are sourcing GI coil for roofing, automotive parts, or general fabrication, knowing how to calculate sheet weight based on thickness, zinc coating, and grade prevents costly material shortages or […]
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Prepainted Galvalume Coil for Metal Roofing: Durable AZ150 Solutions
When sourcing prepainted galvalume coil for metal roofing, construction professionals and procurement managers demand durability, corrosion resistance, and consistent color performance. This material combines the strength of steel with the corrosion protection of aluminum-zinc alloy (galvalume) and a factory-applied paint system. For over 15 years, ChinaCNU Steel has manufactured premium aluzinc steel coil from our […]
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PPGI Coil for Roller Shutter Door – Durable Prepainted Steel
When sourcing PPGI coil for roller shutter door manufacturing, buyers demand materials that withstand daily mechanical stress, UV exposure, and corrosion. At ChinaCNU Steel, we produce prepainted galvanized steel coil engineered specifically for roller shutter profiles, offering consistent thickness, superior adhesion, and long-lasting color retention. Our Qingdao factory operates with ISO 9001:2015 certification and 15+ […]
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Galvanized Steel Coil for Highway Guardrail: 2026 Buyers Guide
When sourcing galvanized steel coil for highway guardrail, infrastructure engineers and procurement managers demand materials that meet strict safety standards, corrosion resistance, and cost efficiency. As a leading galvanized steel supplier with 15+ years of export experience, ChinaCNU Steel supplies high-quality GI coil specifically designed for roadside barrier systems. Our hot dip galvanized coil is […]
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How to Read Steel Coil Mill Test Certificate: A Buyer’s Guide for 2026
Understanding how to read steel coil mill test certificate documents is essential for any buyer of galvanized steel coil, PPGI coil, or GI coil. Without proper verification, you risk receiving material that fails structural or coating specifications. At ChinaCNU Steel, we have exported over 250,000 tons of steel coils to 80+ countries since 2010, and […]
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PPGI Coil Top Coat and Back Coat Explained: Complete Guide for 2026
Understanding the difference between PPGI coil top coat and back coat is essential for any buyer of prepainted galvanized steel coil. The top coat provides color, UV resistance, and durability, while the back coat protects against corrosion and moisture from the reverse side. In 2026, global demand for color coated steel coil continues to rise, […]
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Galvalume Steel Coil AZ50 vs AZ150: Which Coating Grade Wins?
When sourcing coated steel for roofing, siding, or industrial fabrication, one of the most critical decisions is choosing between galvalume steel coil AZ50 vs AZ150. These two coating grades—defined by their aluminum‑zinc alloy mass per square meter—directly impact corrosion resistance, formability, and project lifespan. As a leading galvalume supplier China, ChinaCNU Steel produces both AZ50 […]
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SPCC vs DC01 Cold Rolled Steel Coil: Key Differences for 2026
When sourcing SPCC vs DC01 cold rolled steel coil, buyers often face confusion over which grade meets their application requirements. Both materials are widely used in automotive, appliance, and construction industries, but their chemical composition, mechanical properties, and surface finish differ significantly. Understanding these differences is critical for optimizing production costs and ensuring product performance. […]
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Galvanized Steel Coil for Solar Mounting Structure – High-Strength & Corrosion-Resistant
When engineering a galvanized steel coil for solar mounting structure, specifiers demand a material that withstands decades of outdoor exposure while maintaining structural integrity. Our hot dip galvanized coil, available in zinc coatings from Z60 to Z275, delivers the durability required for utility-scale and rooftop solar arrays. As a leading galvanized steel supplier with a […]
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