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Leading integrated manufacturer and exporter of galvanized steel, PPGI, galvalume, aluminum ingots, tinplate, and carbon steel since 1999.
Explore ProductsShandong Longhai Steel Co., Ltd. is located in Jinan, Shandong since 1999. We are an emerging company integrating production, supply, sales, and export of galvanized and galvalume steel, tinplate sheet, hot and cold rolled sheet, and PPGI/PPGL products.
After years of development and improvement, we have become one of the large international steel enterprises. As a large-scale industrial group, we integrate smelting, processing, domestic trade, and import-export operations across carbon steel, galvanized steel, and PPGI products.
Credit first, service advanced, commitment, customer first – these principles guide our operations. We believe in integrity management, mutual benefit, and common development with our global partners.
High quality, reasonable price, and perfect service – our mission is to become the elite stainless steel trade enterprise in North China and a trusted global supplier.
Integrated production, supply, and sales of galvanized steel, PPGI/PPGL, and carbon steel.
Large-scale group integrating smelting, processing, domestic trade, and import/export.
Integrity management, mutual benefit, and common development with clients.
High quality, reasonable price, and perfect service to achieve excellence.
We offer a comprehensive range of high-quality steel and metal products designed for industrial, construction, and manufacturing applications worldwide.
Hot dipped and electro galvanized iron wire for construction, fencing, and industrial use.
Durable carbon steel sheets and coils for structural and industrial applications.
High-precision cold rolled steel with smooth finish for automotive and appliance manufacturing.
Corrosion-resistant steel coated with zinc for long-lasting performance.
55% aluminum, 43.5% zinc, 1.5% silicon alloy-coated steel for superior corrosion resistance.
Galvanized iron roofing sheets with high strength and weather resistance.
Low carbon steel wire rod (SAE1006–SAE1018), 6.5–28mm diameter.
Pre-painted galvanized/galvalume steel with polyester or PVDF coating.
Tin-coated steel sheets used in food packaging and containers.
99.7%–99.9% pure aluminum ingots and PE-coated coils (A1050, A5052, etc.).
High-quality brass materials for electrical, plumbing, and decorative applications.
Pre-painted galvanized roofing sheets with excellent durability and aesthetics.
All products meet international standards with strict quality control from raw material to final delivery.
Serving clients in Asia, Africa, South America, and the Middle East with reliable logistics and documentation.
From smelting to finishing, we control the entire supply chain to ensure consistency and cost efficiency.
Dedicated team available via WhatsApp, email, and phone for technical and commercial assistance.
Learn more about our core products and their industrial applications.
PPGI is made by using hot dip galvanized steel coil as the substrate, going through surface pretreatment, then coating one or more layers of liquid coating by roll coating, and finally baking and cooling. Coatings include polyester, PVDF, and SMP.
Updated: July 30, 2021Hot Dipped Galvanized Steel Coil has excellent performance with ideal comprehensive properties of corrosion resistance, formability, and coating adhesion. Widely used in construction and appliances.
Updated: July 22, 2021Galvalume is produced by a hot-dip process with 55% aluminum, 43.5% zinc, and 1.5% silicon. Offers superior corrosion resistance compared to traditional galvanized steel.
Updated: July 22, 2021We're ready to support your business with high-quality steel and metal products. Contact us today for quotes, samples, or technical advice.
+86 15662696110
info@sdlhsteel.com
Liaocheng, Shandong, China
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