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Premium GI Steel Sheets &
Galvanized Steel Products

ISO9001 Certified Manufacturer and Exporter from China. High-strength, corrosion-resistant GI, Galvalume, PPGI, and Corrugated Roofing Sheets for industrial, construction, and infrastructure applications.

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Who We Are

Shandong Sino Steel Co., Ltd is a comprehensive company for steel production and trading, integrating manufacturing, processing, distribution, logistics, and international export.

Our Vision & Mission

Our Vision: To be a world-class, professional, reliable, and outstanding steel supplier.

Our Mission: Offer valuable services and be the best choice for global steel buyers.

Our Values: Integrity, Quality, Innovation, and Sustainable Development.

Steel Production

Integrated manufacturing with strict quality control.

Global Logistics

Efficient export and delivery network.

ISO9001 Certified

Compliant with international quality standards.

Export Expertise

Serving clients in over 50 countries.

Our Premium Products

High-quality GI Steel Sheets, Coils, Galvalume, and Prepainted Steel Products

508mm Galvanized Sheet Coil ASTM-A653

508mm Galvanized Sheet Coil ASTM-A653

  • Standard: ASTM A653
  • Zinc Coating: Z30–Z275 g/m²
  • Thickness: 0.105–4.0mm
  • Application: Anti-corrosion, roofing, ducting
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Galvanized Corrugated Roof Panel

Galvanized Corrugated Roof Panel

  • Standard: JIS G3302, ASTM
  • Zinc Coating: Z275, Z600
  • Thickness: 0.12–3.0mm
  • Use: Roofing, cladding, industrial buildings
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AZ30-AZ40 Galvalume Steel Coil

AZ30-AZ40 Galvalume Steel Coil

  • Al-Zn Coating: 30–40 g/m²
  • Standard: SNI, BIS, ASTM A792
  • Hardness: Mid-Hard
  • Use: Roofing, solar panel frames
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G550 12 Gauge Galvanized Steel Sheet

G550 12 Gauge Galvanized Steel Sheet

  • Grade: DX51D, SGCC
  • Yield Strength: 550 MPa
  • Thickness: ~2.65mm (12 gauge)
  • Use: Structural, automotive, heavy-duty
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Z275-Z600 GI Steel Sheet TS550GD

Z275-Z600 GI Steel Sheet TS550GD

  • Standard: ASTM A653, JIS G3302
  • Zinc Coating: 275–600 g/m²
  • Tensile Strength: 550 MPa
  • Finish: Hot-dip, zero spangle
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0.32mm Galvalume Steel Coil HRB85

0.32mm Galvalume Steel Coil HRB85

  • Thickness: 0.32mm
  • Hardness: HRB85
  • Coating: Al-Zn (55% Al)
  • Use: HVAC, roofing, anti-fingerprint
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Prepainted Galvanized Steel Coil (PPGI)

  • Coating: PVDF, Polyester
  • Colors: Custom RAL, Metallic
  • Zinc: Z80–Z275
  • Applications: Roofing, facades, appliances
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Full Hard GI Plain Sheet

  • Grade: API, DX51D, SGCC
  • Spangle: Big, Small, Zero
  • Thickness: 0.12–3.0mm
  • Use: Industrial stamping, deep drawing
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Why Choose Us?

Trusted by global partners for quality, reliability, and service excellence.

ISO9001 Certified

Compliant with international quality management systems.

Anti-Corrosion

High zinc and aluminized coatings for long-term durability.

Global Export

Serving clients in Europe, Asia, Middle East, Africa, and Americas.

Fast Delivery

Efficient logistics and container loading from Qingdao Port.

150+
Products Available
50+
Countries Served
ISO9001
Quality Certified
15+
Years Experience

Frequently Asked Questions

What standards do your GI sheets comply with?

Our products meet ASTM A653, JIS G3302, DIN, SNI, BIS, and API standards, depending on the product line.

Can I request custom colors for PPGI coils?

Yes, we offer custom color coating in RAL, Pantone, and special metallic finishes upon request.

What is the minimum order quantity (MOQ)?

Our standard MOQ is 25 metric tons, but we can accommodate smaller trial orders for new clients.

How do you ensure product quality?

We conduct in-house QC checks at every stage and provide mill test certificates (MTC) with each shipment.

What are your packaging options?

We offer standard export packaging with waterproof paper, steel straps, and wooden pallets. Custom packaging is available.

Get in Touch

For quotes, samples, or technical inquiries, visit our official website to connect with our sales team.

Visit Official Website to Contact

Email: sales@gi-sheet.com

Address: Chengyang District, Qingdao, China

Work Hours: 8:30 AM – 5:30 PM (Beijing Time)

Fax: 86-0532-87961221

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