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Carbon Steel
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Carbon steel patterned coil
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Carbon steel patterned plate
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Stainless Steel
Stainless Steel Coil/Strip
Stainless steel patterned coil
Stainless Steel Plate/Sheet
Stainless steel patterned plate
Stainless Steel Pipe/Tube
Stainless Steel Bar/Rebar
Galvanized Steel
Galvanized Steel Coil/Strip
Galvanized Pipe/tube
Galvanized Steel Plate
Galvanized corrugated steel plate
PPGI Steel Coil
Pattern color coated Coil
3D Print PPGI Steel Coil
Color painted roof panels
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Angle Steel
Marine Steel
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Marine flat steel
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L-Section Steel
Marine Steel Pipes & Tubes
Marine Steel
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Marine Steel Pipes & Tubes
Aluminum
Aluminum pipe
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Aluminum Rod
Copper
Copper tube
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Alloy
Alloy Coil
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Other products
Billets/rails
Ductile lron Pipe
Tin plate
steel grating
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HIGH QUALITY MECHANICAL EQUIPMENT SUPPLY

HIGH QUALITY MECHANICAL EQUIPMENT SUPPLY

Including the relevant equipment and accessories of each position of the crane
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HIGH QUALITY MECHANICAL EQUIPMENT SUPPLY

HIGH QUALITY MECHANICAL EQUIPMENT SUPPLY

Including the relevant equipment and accessories of each position of the crane
Learn More
We Make it Easy for You

Product Type

EV Charging Pipe
EV Charging Pipe

EV Charging Pipe

Various places governments are working to expand charging infrastructure along roadways
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EV Charging Station
EV Charging Station

EV Charging Station

Various places governments are working to expand charging infrastructure along roadways
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EV Charging Station
EV Charging Station

EV Charging Station

Various places governments are working to expand charging infrastructure along roadways
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Battery
Battery

Battery

Various places governments are working to expand charging infrastructure along roadways
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Why Choose ZUNKAI as Your Steel Manufacturer

Why Choose ZUNKAI as Your Steel Manufacturer

Since our establishment, we have successfully served numerous major national construction projects. Through years of production experience, we have obtained multiple national patents and international quality certifications, breaking through barriers in the steel production industry. We have creating a self-sustained production chain from manufacturing to transportation and export, offering one-stop procurement services for our customers.

23 years

of steel manufacturing and sales

150000 +

Factory floor area

300 +

customers repurchase worldwide

1000 +

Employees of the Company
READ MORE

Industry Leading Manufacturer

We are the leading manufacturers of adult and children hygiene products formore than a decade Our products, including sanitary pads, baby and adultdiapers, have surpassed all quality benchmarks in both India and abroad
About US
Industry Leading Manufacturer
What Our Customers Say
Testimonials

What Our Customers Say
Our publishing company has been working with this company for almost 10 years. They deliver a superb product and work with their customers to meet all their needs from quick turnaround to quality projects.

Mike Posner

Our publishing company has been working with this company for almost 10 years. They deliver a superb product and work with their customers to meet all their needs from quick turnaround to quality projects.

Mike Posner

Our publishing company has been working with this company for almost 10 years. They deliver a superb product and work with their customers to meet all their needs from quick turnaround to quality projects.

Mike Posner

Our publishing company has been working with this company for almost 10 years. They deliver a superb product and work with their customers to meet all their needs from quick turnaround to quality projects.

Mike Posner

Feature Products

Our products are designed for everyone.
Q235A/S235JR/A36/SS400 Seamless Pipe

Q235A/S235JR/A36/SS400 Seamless Pipe
Patterned steel plate

Patterned steel plate
Q235B Carbon steel plate

Q235B Carbon steel plate
Q235B Carbon steel patterned coil

Q235B Carbon steel patterned coil
Q235&S235JR&A36 Carbon Steel Coil

Q235&S235JR&A36 Carbon Steel Coil
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Team of Professionals

Jane Zhao

Sales Manager
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Janmson

Sales Manager
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Iris

Deputy General Manager
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Danae Zhang

New media operation
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SOMETHING ABOUT OUR COMPANY

SOMETHING ABOUT OUR COMPANY

Jinan Zunkai Materials Co., Ltd belongs to the Jinan Zunkai Group. Jinan Zunkai Group founded in 2002, with five branch companies and is well-funded. Our annual sales nearly one billion, about 300, 000 tons steel.Zunkai regards moral integrity as fundamental, relying on advantages of resources, we will ensure the most reliable quality and very good prices.

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Hospitality is our core value
Jinan Zunkai successfully delivered Ethiopia's industrial upgrading strategic project and deepened the layout of the African market
Recently, Jinan Zunkai and a well-known Ethiopian manufacturing enterprise reached strategic cooperation, the successful delivery of the first batch of steel belt, galvanized belt and color coated belt products.

Jinan Zunkai successfully delivered Ethiopia's industrial upgrading strategic project and deepened the layout of the African market
Jinan Zunkai successfully signed an order for thousands of tons of carbon steel coils in India, deepening the layout of the South Asian market
Field visits to Indian customers demonstrate confidence in strategic cooperation

Jinan Zunkai successfully signed an order for thousands of tons of carbon steel coils in India, deepening the layout of the South Asian market
Win-win cooperation | Jinan Zunkai and Bangladesh quality customers to achieve strategic cooperation
Recently, Jinan Zunkai international trade team successfully completed the first batch of stainless steel plate orders with a well-known manufacturing enterprise in Bangladesh. The customer sent a technical delegation to visit and investigate. On the basis of deepening mutual trust, the two sides reached a long-term cooperation intention on the supply of industrial materials in Bangladesh.

Win-win cooperation | Jinan Zunkai and Bangladesh quality customers to achieve strategic cooperation
A new benchmark for China-Kyrgyzstan cooperation! Jinan Zunkai and Djibouti customers to deepen the "Belt and Road" steel trade
Recently, Jinan Zunkai Materials Co., Ltd. and a well-known construction supply chain enterprise in Djibouti officially signed a cold coil/galvanized coil purchase agreement, marking the company to further consolidate the layout of the African market.

A new benchmark for China-Kyrgyzstan cooperation! Jinan Zunkai and Djibouti customers to deepen the "Belt and Road" steel trade
Jinan Zunkai and the Middle East industry leading to achieve strategic cooperation color coating roll/galvanized roll to help container house intelligent manufacturing upgrade
Jinan Zunkai Materials Co., LTD. (hereinafter referred to as "Jinan Zunkai") recently announced that it has reached a cooperation with a well-known modular construction group in the Middle East to provide high-end color coated coils and galvanized coils for its container house production base. Through technology adaptation, delivery optimization and long-term service commitment, the two parties will jointly promote the quality upgrading of industrial construction materials in the Middle East.

Jinan Zunkai and the Middle East industry leading to achieve strategic cooperation color coating roll/galvanized roll to help container house intelligent manufacturing upgrade
Join hands with Ethiopian customers to create a new benchmark for rolling shutter door manufacturing
-- The model of China-Africa cooperation has helped Ethiopia upgrade its manufacturing sector

Join hands with Ethiopian customers to create a new benchmark for rolling shutter door manufacturing
Sign contracts with Vietnamese traders to deepen the market layout in Southeast Asia
- High quality galvanized coil products are highly recognized by customers, opening a new chapter of long-term cooperation

Sign contracts with Vietnamese traders to deepen the market layout in Southeast Asia
Going hand in hand: zunkai became a solid backer of the Iranian real estate business
In today's economic globalization, the cooperation between enterprises crosses national boundaries and writes a chapter of mutual benefit and win-win results. With excellent quality and service, we have successfully entered the Iranian market and become a stable supplier for many local real estate enterprises, injecting strong impetus into the development of Iran's construction industry.

Going hand in hand: zunkai became a solid backer of the Iranian real estate business
Love across borders: Zunkai helps Iraq's education construction
In the land of turmoil and reconstruction in Iraq, a construction project for the future is in full swing. A steel company with a sense of social responsibility has stepped forward to undertake the construction projects of many loving schools in Iraq, supporting the sky of knowledge for local children.

Love across borders: Zunkai helps Iraq's education construction
Jinan Rail Transit Line 1
At the end of 2015, Jinan Metro purchased steel from our company, and on January 11, 2016, the construction of the first underground station of Jinan Rail Transit Line R1 began; On June 1, the first beam of Jinan rail transit line R1 was successfully hoisted; On July 31, Jinan rail transit R1 line "Qianjin No.1" shield machine officially started.

Jinan Rail Transit Line 1

Professional Certificates

We firmly adheres to the concept of compliance, ensuring every product is reliable and safe to use.

QMS

Record form for foreign trade managers

Certified Supplier certificate

SGS

Quality system management certification

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Q1: What is your terms of payment?
A: 30% T/T as the upfront deposit, 70% before delivery. We will show you the photos of products and package before you pay the balance.

Q1: What is your terms of payment?

A: 30% T/T as the upfront deposit, 70% before delivery. We will show you the photos of products and package before you pay the
balance.

What is the terms of packing?

Generally, we pack our goods in bundles or coils with rods or belts, we could also pack the goods as the customers’requirement.

What is your delivery time?

For stocks, we could transport the goods to loading port within 7 days after we received your deposit.
For production period, it usually takes about 15 days-30 days after receiving the deposit.

Could you produce according to the samples?

Yes, we could customer-made by your samples or technique drawings, we could build the mold and fixtures.

How could you guarantee your products?

Each piece of products is manufactured by certified workshops, inspected by SORUN piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

How do we trust your company?

We specialise in steel business for years, headquarter locates in Jinan, Shandong province, you are welcome to investigate in any ways, by all means, you could place an order in alibaba with trade assurance which could secure your payment.

THE LASTER NEWS

Welcome to the most reliable building store. We know what a mistake may cost, and this is why we only provide the most reliable building materials for you. What do we offer...
Central Asian Expo Uzbekistan 2026 a Complete Success – A Report from SHANDONG TXD STEELGROUP CO., LTD
19 May 2026

Central Asian Expo Uzbekistan 2026 a Complete Success – A Report from SHANDONG TXD STEELGROUP CO., LTD
What are the differences between oriented silicon steel and non-oriented silicon steel?
18 May 2026

What are the differences between oriented silicon steel and non-oriented silicon steel?
Comprehensive Guide to Ductile Iron Pipes: Properties, Applications, and Benefits
15 May 2026

Comprehensive Guide to Ductile Iron Pipes: Properties, Applications, and Benefits
TXD Steel Group Invites You to the 26th Guangzhou Int'l Metal Exhibition(May 2026, Guangzhou, China)
06 May 2026

TXD Steel Group Invites You to the 26th Guangzhou Int'l Metal Exhibition(May 2026, Guangzhou, China)
VIEW MORE

Recent News Give You Harvest

What is the difference between hot rolling and cold drawing?
Nov 17,2025

What is the difference between hot rolling and cold drawing?

The difference between them can be summarized as follows: one is to "shape" the shape at high temperature, and the other is to "fine-tune" the performance at room temperature.
Why do patterned plates have various shapes of patterns?
Nov 11,2025

Why do patterned plates have various shapes of patterns?

The various shapes and patterns on carbon steel sheets are not merely for aesthetic purposes; their core function is functionality. Different shapes are used in different scenarios to optimally achieve several key functions.
What is Carbon Steel?
Nov 03,2025

What is Carbon Steel?

Carbon steel, an alloy of iron and carbon, is a cornerstone in construction and engineering. The carbon content in steel significantly influences its strength, ductility, and weldability.
The differences between H-beams, W-beams, and S-beams
Nov 24,2025

The differences between H-beams, W-beams, and S-beams

Steel beams—such as H-beams, W-beams, and S-beams—are used to support heavy objects.
Alloys in Action: Choosing the Right Metal Blend for Tough Jobs
Jan 26,2026

Alloys in Action: Choosing the Right Metal Blend for Tough Jobs

The process of alloying can transform a relatively low-strength material into a high-performance alloy with much better physical and chemical properties than the base material. However, selecting an alloy can be difficult, as there are many different types and grades available, each with its own strengths and weaknesses. In this article, we’ll explain some key properties to be aware of and the deciding factors in alloy selection.
7 Benefits of Stainless Steel
Jan 29,2026

7 Benefits of Stainless Steel

Stainless steel is durable, corrosion-resistant, heat-resistant, hygienic, sustainable, and aesthetically pleasing, making it an ideal choice for residential, commercial, and industrial projects.
Steel descaling process
Mar 13,2026

Steel descaling process

When steel is heated during annealing or welding, an outer layer called "oxide scale" typically forms. Oxide scale will always form unless the steel is fully protected against oxidation when heated above its reaction temperature. Rust in the environment is usually considered a separate issue. Once oxide scale forms on the steel surface, it typically requires a comprehensive descaling process to remove it.
Surface Finish Selection Guide for Tinplate Raw Material Buyers
May 08,2026

Surface Finish Selection Guide for Tinplate Raw Material Buyers

Choosing the right surface finish is the fastest way to balance print quality, corrosion resistance, and line efficiency in tinplate. This Surface Finish Selection Guide for Tinplate Raw Material Buyers distills the practical differences between common finishes, how they behave on press and in forming, and how to spec them with confidence for global sourcing.

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