Hunan O. E. D hard metal, A professional Chinese manufacturer of tungsten carbide products such as rods, strips, rings, drilling bits, indexable inserts, wear parts, drawing pellets, and customized....
We are Hunan O. E. D hard metal, A professional Chinese manufacturer of tungsten carbide products such as rods, strips, rings, drilling bits, indexable inserts, wear parts, drawing pellets, and....
Drilling bits for mining, customized. Hunan O. E. D hard metal, A professional Chinese manufacturer of tungsten carbide products such as rods, strips, rings, drilling bits, indexable inserts, wear....