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Premium Steel Solutions from DONSEE

SHANDONG DONSEE.GR METAL CO., LTD (DONSEE GR STEEL), founded in 2015, is a fully integrated industrial manufacturer specializing in high-quality steel products for global construction, infrastructure, and industrial applications.

Steel Manufacturing Facility

About DONSEE Steel

A trusted name in steel manufacturing, delivering innovation, quality, and reliability since 2015.

DONSEE Steel Plant

Integrated Industrial Excellence

SHANDONG DONSEE.GR METAL CO., LTD (DONSEE GR STEEL CO., LTD), founded in 2015, is a collectivized company integrating industrial manufacturing, construction, and real estate development. The company covers an area of more than 340 acres, with a registered capital of RMB 280.88 million and over 2,000 employees.

Our state-of-the-art facilities include eight fully operational production lines, serving markets across more than 30 countries. We are committed to sustainable growth, advanced technology, and customer satisfaction.

  • 340+ Acres Manufacturing Facility
  • 2,000+ Skilled Employees
  • 8 Advanced Production Lines
  • Exported to 30+ Countries
Learn more about our manufacturing capabilities

Advanced Manufacturing Lines

Precision engineering and cutting-edge technology ensure consistent quality across all product lines.

Pickling Line

One advanced pickling steel sheet production line for surface preparation and oxide removal.

Cold Rolling

Two high-precision cold rolled steel sheet production lines for superior thickness control.

Hot-Dip Al-Zn-Si

One hot-dip aluminum zinc silicon steel sheet line for enhanced corrosion resistance.

Galvalume (GL)

One dedicated hot-dip Galvalume steel sheet production line for long-term durability.

Galvanized (GI)

One hot-dip galvanized steel sheet production line for superior rust protection.

Pre-Painted (PPGI)

Two prepainted steel sheet production lines offering customizable color finishes.

Our Products

High-performance steel solutions engineered for durability, strength, and global standards.

Galvalume Steel Coils (GL)

Galvalume Steel Coils (GL)

Al-Zn coated steel with excellent corrosion resistance for roofing, cladding, and outdoor applications.

  • Coating: 55% Al-Zn
  • Thickness: 0.15–2.0 mm
  • Standards: ASTM, JIS, EN
Galvanized Steel Coils (GI)

Galvanized Steel Coils (GI)

Zinc-coated steel for superior rust protection in industrial and structural applications.

  • Zinc Coating: Z60–Z275
  • Thickness: 0.18–3.0 mm
  • Standards: ASTM A653, DX51D
Pre-Painted Steel Coils (PPGI)

Pre-Painted Steel Coils (PPGI)

Color-coated steel with primer and topcoat for architectural and decorative use.

  • Coating: Polyester, PVDF
  • Thickness: 0.2–1.2 mm
  • Colors: RAL, Custom
Self-Drilling Anchor Bar

Self-Drilling Anchor Bar

High-strength threaded bar for geotechnical and foundation anchoring systems.

  • Material: Grade 500–835 MPa
  • Diameter: 15–32 mm
  • Application: Tunneling, Slope Stabilization

Cold Rolled Steel Coils

Precision-rolled steel with smooth finish for automotive and appliance manufacturing.

  • Thickness: 0.3–4.0 mm
  • Width: 600–1500 mm
  • Standards: SPCC, SAE

Hot Rolled Steel Coils

Durable, high-tensile steel for structural beams, pipelines, and heavy machinery.

  • Grade: Q235, Q345
  • Thickness: 1.5–12 mm
  • Application: Construction, Shipbuilding

Aluminum-Zinc Coated Sheets

High-performance alloy-coated sheets for extreme weather resistance.

  • Coating: 55% Al-Zn
  • Weight: 90–225 g/m²
  • Life Span: 20–30 years

Steel Pipes

Welded and seamless steel pipes for fluid transport, scaffolding, and structural use.

  • Diameter: 1/2" to 24"
  • Standards: API 5L, ASTM A53
  • Coating: Galvanized, Black
2015
Founded
340+
Acres Facility
2,000+
Employees
30+
Countries Served

Frequently Asked Questions

What is the difference between Galvalume and Galvanized steel?

Galvalume is coated with 55% aluminum-zinc, offering superior corrosion resistance and longer lifespan, especially in coastal areas. Galvanized steel uses pure zinc coating and is ideal for general-purpose applications.

Do you offer custom PPGI color options?

Yes, we provide PPGI coils in standard RAL colors and can accommodate custom color matching upon request.

What are the minimum order quantities (MOQ)?

Our standard MOQ is 25 metric tons per size and specification, but we can discuss flexible terms based on project needs.

Are your products certified to international standards?

Yes, our products comply with ASTM, JIS, EN, and other global standards. We provide mill test certificates (MTC) with every shipment.

Get in Touch

Reach out to our team for inquiries, quotes, or technical support.

Contact Information

Phone: +86 150 0638 0162

Email: [email protected]

WhatsApp: Chat on WhatsApp

Address: 3 Building, Zhenxing Road, Liaocheng City, Shandong, China

Visit Official Website to Contact

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