Premium Steel & Insulation Solutions from China

Shandong Ruifenglian Supply Chain Co., Ltd. delivers high-performance cold rolled, galvanized, pre-painted steel coils, Galvalume, and glass wool products with global compliance and precision engineering.

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15+ Years Experience

Trusted by industrial partners across 30+ countries.

ISO-Certified Quality

Compliant with international standards and testing protocols.

Global Logistics

Efficient shipping from Qingdao Port to worldwide destinations.

About Shandong Ruifenglian

Shandong Ruifenglian Supply Chain Co., Ltd. is a leading manufacturer and exporter of high-quality steel products based in Qingdao, Shandong, China. With a strong focus on innovation, quality control, and customer satisfaction, we have built a reputation as a reliable partner for industrial and construction sectors globally.

Our mission is simple: "Good quality for survival, good faith for development, using new technology to improve product quality." This guiding principle drives every decision we make—from raw material sourcing to final delivery.

Advanced production equipment and automated lines

Dedicated R&D and quality assurance team

Exported to Asia, Africa, South America, and the Middle East

Custom packaging and labeling available

Our Values & Certifications

Integrity, innovation, and excellence are at the heart of our operations. We maintain strict compliance with international standards.

Company Culture

Integrity First: Honest communication and ethical business practices.
Innovation Driven: Continuous improvement through technology and R&D.
Team Excellence: Skilled professionals committed to operational excellence.
Customer-Centric: Tailored solutions and responsive support.

Quality Assurance

We adhere to the highest international standards in manufacturing and supply chain management.

ISO 9001 Certified

SGS Verified

RoHS Compliant

Fire-Resistant Testing

All products undergo rigorous inspection at multiple stages: raw material, in-process, and final shipment.

Our Products

Engineered for durability, strength, and performance across diverse industrial applications.

Cold Rolled Steel

High-strength, smooth-finish steel ideal for automotive, appliance, and precision engineering.

Thickness: 0.15–3.0 mm
Width: 600–1500 mm
Standards: ASTM, JIS, GB
Surface: Skin-passed, oiled

Cold Rolled Full Hard Steel

As-rolled high tensile strength steel used in stamping and deep-drawing applications.

Yield Strength: 300–550 MPa
Hardness: HRB 65–85
Coil Weight: 3–12 tons
Tempers: 1/4H, 1/2H, FH

Galvanized Steel Coil

Zinc-coated steel for superior corrosion resistance in roofing, cladding, and outdoor structures.

Zinc Coating: Z60–Z275 g/m²
Thickness: 0.18–2.5 mm
Standards: ASTM A653, DX51D
Finish: Regular Spangle, Zero Spangle

55% Galvalume Steel Coil

Aluminum-zinc alloy coated steel with exceptional heat and corrosion resistance.

Coating: 55% Al-Zn (AZ100–AZ150)
Thickness: 0.25–1.2 mm
Applications: Roofing, HVAC, chimneys
Life Span: Up to 25 years

Pre-Painted Steel Coil

Color-coated steel with excellent weatherability and aesthetic finish for architectural use.

Coating: Polyester, PVDF, SMP
Colors: RAL, custom options
Thickness: 0.2–1.0 mm
Topcoat: 15–25 μm

Glass Wool

High-efficiency thermal and acoustic insulation material for industrial and building applications.

Density: 10–32 kg/m³
Thickness: 25–100 mm
Temp Resistance: Up to 300°C
Applications: Ducts, walls, ceilings

Custom Fabrication

We offer cutting, slitting, leveling, and packaging services tailored to your project needs.

Slitting: Width down to 100 mm
Cutting: Sheet or coil form
Packaging: Export-standard wooden pallets
MOQ: Flexible based on product

Logistics & Export

Seamless global delivery from Qingdao Port with full documentation and customs support.

Port: Qingdao, China
Shipping: FOB, CIF, CFR
Documents: BL, CO, PL, CI
Lead Time: 15–30 days

Why Choose SDRFL Steel?

We combine advanced technology, strict quality control, and customer-first service.

Advanced Equipment

Fully automated production lines with real-time monitoring and precision control systems.

Consistent Quality

Every batch tested for thickness, coating weight, tensile strength, and surface defects.

24/7 Support

Dedicated sales and technical team available for inquiries, quotes, and after-sales service.

Global Reach

Exported to over 30 countries with reliable logistics and on-time delivery performance.

Frequently Asked Questions

What are your main products?

We specialize in cold rolled steel, cold rolled full hard steel, galvanized steel coil, 55% Galvalume steel coil, pre-painted steel coil, and glass wool insulation.

Can you provide samples?

Yes, we offer free samples for evaluation. Please contact us with your shipping address and product interest.

What are your payment terms?

We accept T/T (Telegraphic Transfer), L/C at sight, and other negotiable terms based on order size and partnership history.

Do you offer OEM services?

Yes, we support OEM labeling, custom colors, and tailored packaging upon request.

How do you ensure product quality?

All products undergo multi-stage inspections: raw material check, in-process testing, and final QA before shipment. Certificates (SGS, CO, etc.) are provided.

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