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Premium Galvanized & Prepainted Steel Coils Supplier

Jinbowantong Steel Co., Ltd. is a leading manufacturer and exporter of high-quality galvanized steel coils (GI), Galvalume (GL), PPGI, PPGL, and corrugated roofing sheets. With over 350,000 tons annual production capacity, our products are trusted in more than 100 countries across Southeast Asia, the Middle East, Africa, and South America.

Steel Coils Manufacturing

About Jinbowantong Steel

A trusted name in steel manufacturing and trading, delivering quality and reliability since inception.

Our Story

Jinbowantong Steel Co., Ltd. is a comprehensive enterprise specializing in the production and trading of steel products. With a registered capital of 10 million RMB, we have established ourselves as a reliable partner for construction, home appliance, and industrial equipment manufacturers.

Our main products include hot-dipped galvanized steel coils (GI), Galvalume (55% Al-Zn) steel coils, prepainted steel coils (PPGI, PPGL), and corrugated roofing sheets. We offer primary processing services such as cutting, batching, and delivery to meet diverse client needs.

Over one-third of our output is exported to more than 100 countries across Southeast Asia, the Middle East, Africa, and South America.

Factory Interior Steel Production Line Quality Inspection Steel Coil Storage

Why Choose Jinbosteel?

We combine advanced production capabilities with global reach and strict quality control to deliver superior steel solutions.

High Production Capacity

350,000 tons/year for GI and GL coils, 40,000 tons/year for prepainted coils, and over ten corrugated roofing sheet lines ensure fast delivery and scalability.

Global Export Reach

Products exported to over 100 countries in Southeast Asia, Middle East, Africa, and South America with consistent quality and compliance.

Quality Assurance

Our products meet international standards and are rigorously tested for durability, corrosion resistance, and performance in diverse environments.

Our Products

Explore our wide range of high-performance steel products designed for construction, industrial, and appliance applications.

Hot-Dipped Galvanized Steel Coils (GI)

Hot-Dipped Galvanized Steel Coils (GI)

  • Thickness: 0.12–2.0 mm
  • Width: 600–1250 mm
  • Coating: 40–275 g/m²
  • Speed: 150 m/min
  • Capacity: 300,000 tons/year
Galvalume Steel Coils (GL)

Galvalume Steel Coils (GL)

  • Composition: 55% Al, 43.4% Zn, 1.6% Si
  • Excellent heat & corrosion resistance
  • Durable quaternary alloy coating
  • Ideal for roofing and cladding
  • Capacity: 350,000 tons/year
Prepainted Steel Coils (PPGI, PPGL)

Prepainted Steel Coils (PPGI, PPGL)

  • Substrate: GI or GL
  • Thickness: 0.12–2.0 mm
  • Width: 70–1250 mm
  • Uniform coil-coated finish
  • Capacity: 40,000 tons/year
Corrugated Roofing Sheets

Corrugated Roofing Sheets

  • Width: 665 mm standard
  • High water drainage efficiency
  • Leak-resistant design
  • Used in workshops, factories, kiosks
  • Multiple production lines
Galvanized Steel Sheet

Galvanized Steel Sheet

  • Zinc-coated for corrosion protection
  • Used in construction & appliances
  • High durability and strength
  • Smooth or textured finishes
  • Custom cutting available
Prepainted Steel Coil for Appliances

Prepainted Steel Coil for Appliances

  • Used in refrigerators, ACs, washing machines
  • Durable color coating
  • Scratch and fade resistant
  • Smooth finish
  • Custom colors available
Colored Prepainted Steel Coil

Colored Prepainted Steel Coil

  • Wide range of RAL colors
  • UV-resistant coating
  • Used in wall panels, ceilings
  • High aesthetic appeal
  • Long-lasting finish
Wooden/Pattern Printed Steel Coils

Wooden/Pattern Printed Steel Coils

  • Decorative printed designs
  • Wood grain, stone, and custom patterns
  • Used in interior and exterior cladding
  • Lightweight and durable
  • Realistic texture and appearance
Prepainted Wrinkle Steel Coils (MATT)

Prepainted Wrinkle Steel Coils (MATT)

  • Matte finish with wrinkle texture
  • Anti-glare and anti-scratch
  • Used in industrial enclosures
  • Excellent adhesion and flexibility
  • High-end aesthetic
Light Steel Keel

Light Steel Keel

  • Made from galvanized or prepainted steel
  • Used in drywall and ceiling systems
  • Lightweight and strong
  • Fire and moisture resistant
  • Easy to install
Rolling Door Steel Coils

Rolling Door Steel Coils

  • High tensile strength
  • Corrosion-resistant coating
  • Smooth operation
  • Durable and secure
  • Customizable profiles
Container Wall Panels

Container Wall Panels

  • Used in shipping containers
  • Prepainted or galvanized
  • Weather and impact resistant
  • Insulated or non-insulated options
  • Fast assembly
350K+
Tons Annual GI/GL Capacity
40K+
Tons Prepainted Capacity
100+
Countries Served
10M
RMB Registered Capital

Frequently Asked Questions

Find answers to common questions about our products and services.

What is the difference between GI and GL steel coils?

GI (Galvanized Iron) coils are coated with pure zinc for corrosion resistance. GL (Galvalume) coils are coated with a mixture of 55% aluminum, 43.4% zinc, and 1.6% silicon, offering superior heat and corrosion resistance, especially in harsh environments.

What are the applications of prepainted steel coils?

Prepainted steel coils are used in roof and wall panels, light steel keels, ceiling systems, rolling doors, containers, household appliances (refrigerators, ACs, washing machines), and decorative panels.

Why choose corrugated roofing sheets?

Corrugated sheets drain water faster and more completely than flat sheets, reducing the risk of leaks. Their structural strength and efficient water dispersion make them ideal for industrial and agricultural buildings.

Do you offer custom cutting and processing?

Yes, we provide storage, cutting, batching, and delivery services. We also offer metal processing for roofing sheets and customized solutions based on client specifications.

What regions do you export to?

Our products are exported to Southeast Asia, the Middle East, Africa, South America, and over 100 countries worldwide.

Get in Touch

Contact us for quotes, product information, or partnership opportunities.

Email: [email protected]

Mobile: +86 189 5433 9718

WeChat: indexlin

Address: Xingfu Steel Market, Boxing County, Shandong Province, China

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