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Premium Galvanized Steel Coils &
Pre-Painted Steel Products

High-strength, corrosion-resistant steel solutions for construction, roofing, and industrial applications. Trusted by over 100 countries worldwide since 2008.

Explore Our Products

About Us

Liaocheng Sino Composite Materials Co., Ltd. was established in May 2008, covering an area of more than 100 mu, with over 200 employees and a registered capital of 10 million yuan. We are a modern enterprise integrating professional R&D, production, and sales of hot-dip galvanized rolls, aluminum-zinc rolls, color-coated rolls, wave tiles, and colored stone tiles.

In 2017, we invested 40 million yuan in a new cold-rolled plate project, achieving self-sufficiency in raw materials. Our products have been exported to over 100 countries across Africa, South America, Southeast Asia, and Central Asia.

100+
Countries Served
15+
Years Experience
Steel Factory

Our Core Strengths

Diversified Team

Experienced multilingual sales team serving global clients in English, Spanish, and Russian.

Leading Technology

Advanced production technology and processes ensuring consistent product quality and performance.

Outstanding Quality

Products meet international standards with excellent appearance and long-term durability.

Worry-Free Service

Comprehensive pre-sale consultation and after-sale support for seamless customer experience.

Our Products

We offer a wide range of galvanized, galvalume, pre-painted, and corrugated steel products designed for durability, strength, and aesthetic appeal.

Galvanized Steel Coil

Galvanized Steel Coil

  • Material: SGCC, S350GD+Z, DX51D
  • Thickness: 0.16–1.2mm
  • Width: 600–1250mm
  • Zinc Coating: 40–275g/m²
  • Surface: Zero, Minimum, or Big Spangle
Pre-Painted Galvanized Steel Coil (PPGI)

Pre-Painted Galvanized Steel Coil (PPGI)

  • Substrate: GI or GL
  • Process: Pre-treatment, coating, baking, cooling
  • Features: Durable, corrosion-resistant, decorative
  • Applications: Construction, appliances, solar, transport
Galvalume Steel Coil

Galvalume Steel Coil

  • Coating: Zinc-aluminum alloy (55% Al, 43.4% Zn)
  • Protection: Cathodic protection even when scratched
  • Advantages: Superior corrosion resistance, heat reflectivity
  • Uses: Roofing, cladding, HVAC systems
Corrugated Steel Plate

Galvanized Corrugated Steel Plate

  • Form: Cold-formed wave profile
  • Applications: Roofs, walls, warehouses, industrial buildings
  • Benefits: Lightweight, high strength, earthquake/fire resistant
  • Lifespan: Long-lasting, maintenance-free
Color Coated Corrugated Steel Plate

Color Coated Corrugated Steel Plate

  • Base: Galvanized steel with organic coating
  • Colors: Wide range of customizable colors
  • Features: Decorative, durable, weather-resistant
  • Uses: Exterior cladding, roofing, architectural design
PPGI/PPGL Steel Coil

PPGI/PPGL Steel Coil

  • PPGI: Pre-painted galvanized iron
  • PPGL: Pre-painted galvalume
  • Process: Surface treatment + paint + curing
  • Applications: Construction, appliances, automotive
Galvalume Steel Sheet

Galvalume Steel Sheet

  • Thickness: Down to 0.11mm
  • Standards: AISI, ASTM, GB, JIS
  • Features: High strength, ultra-thin series
  • Exported to: Over 100 countries
Color Coated Steel Coil

Color Coated Steel Coil

  • Finish: Smooth or embossed
  • Colors: Custom RAL or Pantone options
  • Applications: Roofing, wall panels, appliances
  • Advantages: Aesthetic, long service life

Quality Control

Thickness Test

Tensile & Yield Strength Test

Zinc Coating Test

Coating Adhesion Test

Hardness Testing

Bending Test

Gloss Meter

Stretching Test

We have passed ISO9001 quality management system certification and ISO14001 environmental management system certification. Our commitment to quality ensures every product meets international standards.

Why Choose Us?

Global Export Experience

Products exported to over 100 countries in Africa, South America, Southeast Asia, and Central Asia.

Certified Quality

ISO9001 and ISO14001 certified. Consistent quality control across all production stages.

Advanced Equipment

State-of-the-art machinery ensures precision, efficiency, and high-volume production.

Competitive Pricing

High-quality products at low prices due to vertical integration and raw material self-sufficiency.

Wide Applications

Ideal for roofing, walls, construction, automotive, and industrial projects.

Customer-Centric Approach

We believe in win-win partnerships and long-term collaboration with our clients.

Contact Us

Get in touch for product inquiries, quotes, or technical support.

Contact Information

  • Email: [email protected]
  • Phone: +86 176 6972 9703
  • Tel: +86-532-87965066
  • Fax: +86-532-87961221
  • Address: Suzhou Road and East Ring Road Intersection North 150 Meters West, Yanzhuang Street, Guan County, Liaocheng, Shandong, China

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