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Powder-coated H Beam VIEW MORE
OUR RANGE INCLUDES
H Beams,Steel Plates, Galvanized Coils, Steel Channels Steel Angle Bars and so on.
Carbon steel Flat Bar
OUR ADVANCED PRODUCTION CAPABILITIES
COUPLED WITH OUR RELENTLESS PURSUIT OF ENGINEERING EXCELLENCE
Enable us to deliver durable, precision-engineered steel components that drive efficiency, sustainability, and success for our esteemed customers across the globe.
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Curved Passivated Steel Angle
BACKED BY A LEGACY OF EXCELLENCE
Our state-of-the-art facilities and skilled workforce ensure efficient production processes
Superior material properties, and exceptional customer satisfaction.
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Provide You with Professional

Special Steel Customization Services 

Our company provides OEM services. We process according to drawings, such as drilling, cutting, welding and other technologies.

Certificate

Develop high quality products

Design

Tailored to specific needs

FABRICATION

Capabilities:

High Quality Steel

PRODUCT CATEGORY

Innovative Steel Solutions For Every Application

WHAT MAKES

CHANGZENG ATTRACT CUSTOMERS

Shanghai Changzeng Metal Co., Ltd. was established in 2006, the registered capital of 10.5 million yuan, is a professional steel trade company in Shanghai. The company's main products are steel metal, building materials, steel profiles, plates, pipes and so on. The products are mainly used in construction industry, factory, railway, shipbuilding and so on.
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Steel Channe Manufacturing
Galvanized Steel Plate
Stainless steel Round Tube
Infrastructural Round Steel

Premium Quality

Our factory is equipped with high-end manufacturing technology and quality control at every step to ensure the quality of products.​​​​​​​
01

One-stop Service

Including manufacturing, producing, processing, transportation and export.
02

Location Advantage

​Located in Shanghai,the largest steel distribution center in east China.60 km from the Shanghai port, very convenient transportation to ensure timely delivery.
03

​Technical Support

We can meet customers’ one-stop purchasing needs, according to customer requirements for product deep processing.
04

GLOBAL PROJECT CASES

Shanghai Dishui Lake Island Cross-Sea Bridge Project
The main structure utilizes high-strength H-shaped steel and corrugated steel plates, achieving a 50-year service life and level 8 seismic resistance, setting a benchmark for bridge construction in East China.
Kunshan Elysée Villa District Modular Steel Structure Project
The project applied a channel steel/angle steel modular solution, shortening the construction period to one-third of the traditional method, and received green building certification and a provincial-level excellent engineering award.
Shanghai Chongming CITIC Nursing Home Green Building Project​​​​​​​
A full range of building materials combined with BIM precise proportioning technology achieved zero-error connection between concrete and steel structures, and was awarded as a demonstration project for green buildings in the Yangtze River Delta region.
LATEST NEWS & UPDATES
October 21, 2025

This article compares flat bars and square bars, highlighting their key differences. Flat bars have a rectangular shape, ideal for structural support, custom fabrication, and static load-bearing applications. They are easier to weld and cost-effective for large projects. Square bars, with equal dimensions on all sides, provide strength in multiple directions, making them perfect for dynamic and rotational load-bearing, as well as precision machining. The article also discusses the best use cases for each bar type, such as flat bars for construction and square bars for mechanical components, helping you choose the right material for your project.

October 17, 2025

This article explores the differences between flat bars and drop bars for bicycles, helping riders choose the right handlebar based on their needs. Flat bars provide comfort and control, making them ideal for city commuting, short rides, and beginners. They promote an upright posture, offering stability and ease of use. In contrast, drop bars offer multiple hand positions and an aerodynamic riding style, making them perfect for long-distance cycling, road racing, and speed seekers. The article also highlights the pros and cons of each bar type, helping cyclists select the best option for their riding style and terrain.

October 16, 2025

This guide provides a comprehensive approach to bending aluminum flat bars, ideal for construction, automotive, and DIY projects. It covers the different aluminum grades, tools, and techniques required for successful bending. The article explains the role of heat, the importance of accurate measurements, and the correct use of clamping for precise results. It also highlights common mistakes to avoid, such as overheating or bending too quickly. The guide is designed to help both beginners and professionals achieve clean, accurate bends, ensuring safe and efficient project completion. Contact us for more tips or to source high-quality materials.

ONLINE CONTACT

As a steel manufacturer, our company specializes in producing a wide range of high-quality steel products to meet the diverse needs of our customers.
EXQUISITE CRAFTSMANSHIP

MANUFACTURES HIGH-QUALITY PRODUCTS

As a steel manufacturer, our company takes pride in producing high-quality steel products. Let me provide you with an overview of the process of making steel and some special steel processes to enhance your understanding of our manufacturing capabilities.
Shanghai Changzeng Metal Co., Ltd. was established in 2006. It is a professional steel factory in Shanghai. We mainly sell angle steel, H beam, steel channel, round steel, square steel, steel wire, PPGI coil and so on.
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 +86-18715010658
 admin@cz-metal.com
 No.222 Meidan Road, Meilan Lake, Baoshan District, Shanghai, China
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