Recently, tungsten prices have witnessed a historic surge. As of early March 2026, the price of tungsten powder has soared nearly 5 times compared with a year ago, and the price of black tungsten concentrate has increased by more than 550%, making it the brightest star in the non-ferrous metal sector. This upward trend is not a short-term speculation, but driven by a hard gap formed by supply cont

In oil drilling, the performance of PDC bits relies entirely on PDC cutters (Polycrystalline Diamond Compact), which directly determine drilling efficiency and bit life. The key to selecting the right PDC cutters is precise matching with formation characteristics: soft formations prioritize efficiency, hard formations prioritize durability, and complex formations prioritize adaptability. Improper

Among the complex components of a tricone drill bit, the nozzle is often seen as a small, easily overlooked part. Yet it is truly the hydraulic heart that determines drilling efficiency, bit life, and downhole safety. More than just a passage for drilling fluid (mud) to exit the bit, nozzles are central to efficient rock breaking, bottomhole cleaning, and stable operation. In this article, we