Our Product Range

Dedicated to maintaining our 1st-tier Tungsten production in Asia by enhancing our strict managing system
to ensure great quality, fast delivery, and competitive price.

Tungsten Putty
This tungsten putty weight is great for your Pinewood Derby car and fishing. Place the putty anywhere you need to in order to control the center of balance and easily move it to find the fastest configuration.
Tungsten Screw Taps
High-speed tapping centers set up with a rigid tap can thread holes in a fraction of the time it would take to thread mill the same holes. Additionally, tapping can thread deeper holes in harder materials such as steel.
Fishing Tungsten Weights
Perfect for Neko Rigging or adding weight to Texas Rigs or Wacky Rigged Worms. Add a weight to the tail of your rigged senko/stick bait to create a more vertical fall, allowing the bait to penetrate deeper into eel grass rather horizontally laying on top of the grass.
Tungsten Resin Jig
Designed by bass anglers for bass anglers, our custom HAND-TIED skirts will allow you to become more efficient with your time on the water. Colors were chosen to "Match The Hatch" in order to mimic the most common preyed upon forage.
Heavyweight TSS(18)

The payloads of 18gm/cc Tungsten Super Shot (TSS) provide the highest pellet counts possible. The tungsten-alloy material's density is 22 percent higher than standard tungsten and 56 percent more than lead. The result is the most energy and highest velocities at extreme range.

Pinewood Derby Weights
Our tungsten rods are a great non-toxic, high-density weights that are perfect for tuning your derby car weight and center of gravity. Drill a hole to hide the rods right where you need the weight and keep your car looking smooth with clean lines.
Waterjet Nozzle & Raw Rods

Abrasive Waterjet nozzles are also called as mixing tubes which are installed in waterjet cutting machine to cut materials such as metal, ceramic, stone, glass and other materials. Being highly wear resistant. Able to cut inch-thick metal easily by using upto 90,000psi water stream mixed with garnet.

Carbide Cutting Tools
Freshly designed by our Chief Engineer Peter Chan, Ph.D. our factory manufactured Carbide Inserts are able to achieve 50% more service life alongwith 40% better surface finish with precision on the metal parts than traditional inserts.
Tungsten Copper Alloy
Tungsten copper alloys are used worldwide as electrodes for EDM (Electrical Discharge Machining) and ECM (Electrochemical Machining, and resistance welding electrode. All materials of tungsten copper electrode are manufactured by the press, sinter, and infiltrate process. 
CrankShaft Counterweights
High-performance engines used in motorsport and supercars will use crankshaft counterweights manufactured from Runchang. Engines used in armored vehicles, off-road machinery, power generation, and marine applications need tungsten counterweights to ensure the engine runs with the minimum amount of vibration.

Tantalum and Niobium Prds
Featuring high melting point, corrosion-resistance and good machinability in cold environment, tantalum tube, also known as tantalum pipe, is widely applied to produce tantalum response vessel, tantalum heat exchangers.

Molybdenum Prds

Molybdenum pipe are widely used as the contact materials in silicon controlled rectifier diodes, transistors and thyristors. Molybdenum pipe are used as mounting material for power semiconductor devices. Mainly used for high temperature furnace components, crucible, missile rockets nozzle high temperature furnace, etc


Factory Audit Report Video

From an idea to a finished product, we take advantage of our full experience and competency
in carbide to serve our clients.

We work in close collaboration with our partners to develop new products on a highly modern 3D system -
in a very brief time, if necessary.

Zhuzhou Runchang Group

No. 13 Fctory Building, 

No. 78 Huanghe South Road,

TianYuan District,

Zhuzhou City, HuNan Province, 412007


Corporate Profile
Competence in Tungsten
Customization in Tungsten
Quality Management
Materials Laboratory
Sustainability & Environment