Yanggu Litong Rock Drilling Tools,.Ltd is engaged in R&D drilling tools and production,the company has strong force of technology,advanced test euipment adn first-class production equipment,also own the automatic hydraulic horizontal machinery on 200T/400T,.We mainly produce rock drilling tools of litong brand,anchor drilling tools,mining drilling toos,that had been formed the series and the ability of 500 kinds of products. The series products of drill bits:tapered drilling rod H19-H25,length 0.8m-6.0m:Chisel bit Y120-Y150,the button bit&＃39;s head Dia ?28-?60,threaded drill rod H28-H38,length of2.0m-5.0m;D32-D51,the length 1m-5.25m,the button bit&＃39;s model ?43-?127 dozens of products,such as the brazing of form a complete set of production and the tail at the same time,coupling,connecting rod,quick connect rod,etc.,and also undertake other kind of special product manufacturing that from the requirements of customers. The series products of DTH:high air pressure and low air pressure DTH bits ?65-?200,adopt numerical control lathe machining shape,improving machining precision,with vacuum quenching furnace,heat treatment to prevent the surface oxidation decarburization,in the center of the hole machining has advanced drilling button hole,one ime.In production,absorbs the advanced experience of the industry domestic and abroad,using hot set technology,make the product life is greatly increased,well received by customers.