Zhuzhou KJ Super Materials Co., Ltd. (formerly known as Zhuzhou Southwest Tungsten Alloy Co. Ltd), can be traced back to 2001 which is a limited liability company engaged in manufacturing, machining and sales of tungsten heavy alloy, tungsten copper, cemented carbide, pure tungsten and other relevant tungsten alloy products. 

Offering Wide Product Range 

Our main products include tungsten heavy alloy, tungsten fishing sinkers, tungsten dart barrels, tungsten alloy swaging rods, tungsten shots, bucking bars, copper tungsten electrodes, boring bars, tungsten alloy syringes, collimators and counterweights, which are popular in the US, Canada and Japan. 

We always offer high-quality products for customers in China and abroad. Our products have characteristics of high density, high hardness, high melting point, anti-corrosion, radiation protection, nontoxic and environment-friendly. Therefore, our tungsten alloy products are widely used in fields of aerospace, medical equipment, military, mechano-electronic, oil exploration, vehicle, sports counterweight and gold-plated jewelry. 

Lead by Materials Science Professors and Senior Engineers

With strong foundation, advanced manufacturing technology, strict quality control, and a professional research and development team lead by material science professors and senior engineers, we gain support from relevant academy of Central South University and foreign advanced technology. In addition, we own more than 40 patents for invention and product appearance which ensure our tungsten alloy products are in the leading level in domestic and international markets.

Trade Shows

Trade Show: 27th Annual General Meetings OF International Tungsten Industry Association
Location/Venue: Westin Prince Hotel in. Toronto,Canada
Show Date: September19-25, 2014
Products on display: TUNGSTEN HEAVY ALLOY 
Contact person: KJ GAO


Trade Show: China Fish 2015
Location/Venue: New China International Exhibition Center,Beijing
Show Date: February 10-12, 2015
Booth number: D08
Contact person: KJ GAO


Our Equipments

Cold Isostatic Press
Cold Isostatic Press
Atmosphere Sintering Furnace
Atmosphere Sintering Furnace
CNC Lathe Machine
CNC Lathe Machine
CNC Machine
CNC Machine
300 Tons Hydraulic Press
300 Tons Hydraulic Press
Ball Grinding Machine
Ball Grinding Machine
Swaging Machine
Swaging Machine
Vacuum Drying Oven
Vacuum Drying Oven
Vacuum Drying Oven
Vacuum Drying Oven

Quality Control

QC/Technical Support:

An independent department is responsible for checking the safety and quality of all newly developed products as well as those that are mass-produced for buyers.

QC Staff:

5 to 9

Company Certifications:

Certificate Standard:

ISO 9001:2008  



Issue Date:


Expiry Date:


Issued By:

Guangdong Zhongjian Certification Co.,Ltd.


Production and Service of Tungsten Heavy Alloy and Tungsten Copper Alloy


100% local.

Procedures/testing Details:

Quality Control personnel who are all experts in their respective product assignments check the quality at every stage of production, from the incoming raw materials to the finished product.

Other Information:

We are proud to announce our recently acquired ISO 9001 certification from the China Certification Center.

Services and Support

Sample Availability & Policy:

We will provide free samples of products upon customer's request. To help us decide favorably on sample requests, we ask interested customers to send comprehensive buyer information for our review. All sample shipments will be either by air or by sea, with taxes and shipping costs paid by the customer.



Guarantees/Warranties/Terms and Conditions:

We guarantee our products to be free from manufacturer defects. Liability under this warranty is limited to the replacing of any product found to be defective under normal use.


After Sales Service:

Our Customer Service personnel are experienced product specialists who can answer your questions 7 days a week from 9am to 4am. Contact us now!

Message from the President

As the President of Zhuzhou KJ Super Materials Co., Ltd. I warmly welcome and invite everyone to establish trade with our company.

Established in 2001, Zhuzhou KJ Super Materials Co., Ltd. has become a well recognized and reputable supplier of quality products not just in China but worldwide.

We began with only one assembly line and 15 products. 2 years later, we have expanded our operations to 3 production lines, over 100 products, and a team of more than 80 full-time employees.

We credit our success to the efforts of providing quality products and services, as well as the commitment of our management team and staff in focusing on always aiming at having long-term business relationships with customers.

We look forward to conducting business with you.