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Our products conform to GB, AISI, ASTM, DIN, EN, JIS standard for stainlesss steel coil, sheet and plate. As a stainless steel supplier with more than 23 years of experience,professional service team will provide a full range of services for you.

Advantages of Zunkai

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
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About us

Zunkai Steel is dedicated to the supply chain services of bulk materials, particularly steel. We have passed many certificates, such as ISO9001ISO45001 and ISO Environmental Management System certification. Our products comply with various national standards, including Chinese, British, American, and European. The diversity and wide range of specifications of our products have expanded our business scope. We have over 400 employees and nearly 1,000 workers in our factory. Additionally, we have set up branches in Zibo, Liaocheng, Suzhou, and Guangzhou. Our strong capabilities have enabled us to grow into a large-scale integrated industry and trade group, with annual sales from both domestic and export markets exceeding 4 billion RMB.
About US
About us

Our Products

Our products are designed for everyone.
OUR APPLICATION AREAS

OUR APPLICATION AREAS

Jinan Zunkai is delicated to constantly improving quality control system to ensure that we supply high level of stainless steel products to our customers. Our company has successively obtained the certification of ISO 9001, CE, PED etc..

What clients are saying

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It took three batches of suppliers to find your stainless steel bar, and the hardness after quenching is amazing! Now our drive shaft yield has soared from 82% to 95%, and orders have doubled this year thanks to you!
American auto parts factory owner

Claire Cooper

The stainless Angle steel of Hanoi s new bridge is as good as new after three months of heavy rain! Last time we had a government raid, your consultants worked on VAT documents in two hours, and we got our bonuses faster than the local accountant! Project Manager of VietnamConstruction Company

Claire Cooper

316L stainless steel plate are as smooth as silk when pressed! In the past, I always worried about overstocking, but now you send logistics warning three times a week, and we directly cut the warehouse area by half, saving enough money to buy a new punch! Brazilian auto parts supplier

Claire Cooper

At Jeddah PORT, the customs insisted on the copper pipe inspection report, you will send SGS documents in 10 minutes! Now the project progress is two weeks faster than planned, Party A said that the next bidding must take you!
Saudi desalination plant

Claire Cooper

The rebar for the new Manila airport came from you! After the last earthquake, the supervisor checked the seismic resistance, and all the test data reached the perfect standard. Now the construction site is calledChinese steel bar ! Philippine Engineering Contractor

Claire Cooper

We have been working with you for three years, and the thickness tolerance of stainless steel coil has never exceeded ±0.1mm! The last typhoon season rushed to work, the goods arrived in 15 days, even our president saidthis is the real speed of China ! The Japanese Builder

Our custom-made stainless steel decorative panels have been in the Adriatic Sea all year without changing color! When accepting the ship, the magnifying glass could not find the scratch. The classification society certificate issued by you at 2 AM directly saved our peak season order!
Italian yacht builder

When the containers arrived at Mombasa port, two containers were found to be soaked in water. You did not say a word to issue new goods. We have identified such suppliers! Kenya building materials supplier

Team of Professionals

Jessica

Sales Manager
I can use my ten years of industry experience to accurately match the most suitable steel for your project.

Seraph

Sales Manager
If you have any steel needs, I will respond as soon as possible and provide professional solutions.

Danae Zhang

New media operation
The bridge between you and high-quality factories ensures zero errors in communication and zero worries in cooperation.

Owen

Sales Manager
With sincerity, we guard every order and achieve every win-win cooperation.

Professional Certificates

Certified Supplier certificate

Quality system management certification

SGS

Certified Supplier certificate

Record form for foreign trade managers

QMS

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Your questions, answered: explore our FAQs for ordering, shipping, custom cuts, and more.

What is your terms of payment?

EXW, FOB, CIF, CFR, DDU

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.

How do I know which steel is best for me?

Our Materials Support Team has the full range of capabilities to test extensively, and, more important, analyze what's happening with your steel. We use extensive data analytics, up-to-the-minute technology, and our advanced metals evaluation lab to assist and guide customers to better solutions.

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.

How much lead time do l need to order metal?

If you order by noon CST Monday through Friday, we strive to cut and ship your order the same day. After that, it will be shipped the next business day. This means if you order on Friday afternoon, your order will not ship until the following Monday.

Do you offer bulk pricing?

Yes. On the product page, or in the shopping cart edit your quantities and instantly see the updated discount pricing for your items.
Planning a large order or need mill-run pricing? Contact us for advance bulk purchase options.

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