... tips,in addition,our company mainly produces all kinds of tungsten carbide solid tubes, strips, mining tools, drawing dies, cutting ... tool tips, and various non-standard tungsten carbide, drills, carve drills, tool drills etc. These products are ... the drills for heavy-duty rock drill: detachable bits used for deep hole drilling, rock drill trolley etc.YG11CK4014.0--14. ...