タイトルまたは説明

• Tapered drill bit is a kind of bits that supporting the use of  air rock drill and tapered drill rod.Connect with drill rod by taper,using in Mining of secondary breakup,Bolt supporting,Roadway excavation etc.Z&L tapered drill bits are made by ISO international standard,design of symmetric structures,both nice dust out effort and strong breaking capacibility.Scope of application: Tin Shui Wai, Shenyang and other pneumatic rock drills, and supporting the use of hydraulic drill, applied to coal, iron ore, gold, copper, lead and zinc ore mining, railways, subways, railways, highways and other construction.
   
• Tapered rock drill bits