Cemented Carbide Tungsten Carbide Rods 1. 100% virgin raw materials. 2. Various kinds of grades are availalbe based on customer's application. 3. we have professional advanced production line and inspeciton equipments to ensure high quality products. 4. Precision Ground and high polishing process 5. High wear resistance,high hardness and impact toughness 6. Advanced technology , precise grinding. Material grade list