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CNSteel-Tube – Precision in Every Pipe

China’s leading manufacturer of refrigeration steel tubes, finned evaporators, condensers, and compressor piping systems.

About Changzhou Wujin Shunda

Founded in 1996 and located in Lijia Town, Changzhou City, Jiangsu Province, Changzhou Wujin Shunda Precise Steel Tube Co., Ltd. has grown into one of China’s dominant manufacturers of steel pipes, evaporators, and condensers used in refrigeration systems.

With a construction area of 70,000 square meters, we specialize in producing high-precision refrigeration components including double copper welded steel pipes, single ERW pipes, hot-dip galvanized pipes, and copper-plated pipes.

We supply reliable, high-quality products to renowned refrigerator, freezer, and compressor brands across the globe, maintaining our philosophy: Quality First, Credit Supreme.

  • Over 25 years of industry experience
  • 50,000 tons of steel pipe production capacity annually
  • 10 million sets of evaporators produced yearly
  • One of China’s most complete product ranges in refrigeration piping
Factory Overview

Our Products

Precision-engineered refrigeration components trusted by leading global brands.

Cold Drawing Precise Single Welded Pipe

Cold Drawing Precise Single Welded Pipe

High-precision ERW steel pipe with excellent dimensional accuracy and surface finish, ideal for refrigeration and hydraulic systems.

  • Material: Low-carbon steel
  • Outer Diameter: 6–50 mm
  • Wall Thickness: 0.5–3.0 mm
  • Standards: GB/T 3091, ASTM A53
Precise Double Copper Welded Steel Pipe

Precise Double Copper Welded Steel Pipe

Double copper-coated welded steel pipe with superior corrosion resistance and thermal conductivity for refrigeration applications.

  • Copper Coating: ≥15 μm
  • Outer Diameter: 8–32 mm
  • High-tech product certified by Jiangsu Province
  • Used in major refrigerator brands
Finned Evaporator

Finned Evaporator

High-efficiency evaporator with aluminum fins and copper or steel tubing for optimal heat exchange in refrigerators.

  • Type: Euro, Asia, No-Frost
  • Fin Pitch: 1.8–3.0 mm
  • Tubing: Copper or double copper-welded steel
  • Custom designs available
Condenser

Condenser

Durable condenser units designed for efficient heat dissipation in refrigeration systems.

  • Material: Copper/Steel with aluminum fins
  • Applications: Refrigerators, freezers
  • High thermal efficiency
  • Corrosion-resistant coating
Compressor Pipes

Compressor Pipes

Precision tubing for compressor interconnections, ensuring leak-free performance and durability.

  • Material: Carbon steel, copper-plated
  • Diameter Range: 6–25 mm
  • Bent and formed to OEM specs
  • Used in rotary and reciprocating compressors
Hot-Dip Galvanized Pipes

Hot-Dip Galvanized Pipes

Corrosion-resistant steel pipes with a thick zinc coating, ideal for harsh environments.

  • Zinc Coating: ≥600 g/m²
  • Withstands 1000+ hours salt spray test
  • Used in outdoor and industrial cooling
  • High-tech product certified
Copper-Plated Pipes

Copper-Plated Pipes

Steel pipes with a uniform copper layer for enhanced solderability and corrosion resistance.

  • Copper Thickness: 10–20 μm
  • Excellent brazing performance
  • Used in evaporators and condensers
  • Smooth surface finish
Custom Piping Assemblies

Custom Piping Assemblies

Complete refrigeration line assemblies tailored to customer specifications.

  • Bending, flaring, welding
  • Leak-tested and cleaned
  • OEM/ODM supported
  • Global delivery

Why Choose CNSteel-Tube?

Quality Certified

ISO standards, salt spray tested, and recognized as high-tech products in Jiangsu Province.

R&D Center

Changzhou Technology Center with university partnerships and continuous innovation.

Global Reach

Trusted by refrigerator and compressor brands across Asia, Europe, and the Middle East.

Fast Delivery

Efficient production and logistics network for timely global shipments.

Development Milestones

2009

Precise double copper welded steel pipe assessed as high-tech product in Jiangsu Province.

2011

Awarded “Changzhou Welded Steel Pipe Refrigeration Engineering Technology Research Center”.

2012

R&D center recognized as “Changzhou Technology Center”; new galvanized pipe passes 1000h salt spray test.

Ongoing

Continuous innovation and expansion of product lines for global refrigeration markets.

Contact CNSteel-Tube

Get in touch with our sales and foreign trade departments for inquiries, quotes, and partnerships.

Sales Department

Phone: 0086 519 86233778

Fax: 0086 519 86233778

Email: info@czshunda.com

Foreign Trade Department

Phone: 0086 519 86237201

Fax: 0086 519 89690080

Email: shunda@czshunda.com

Company Address

Lijia Town, Wujin District, Changzhou City, Jiangsu Province, China

Visit Official Website to Contact

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