Shandong Liaocheng Derun EMT Developing Co.,Ltd is the professional manufacturer and exporter of road milling tools ,foundation drilling tools, coal miner tools, rotary cutter bits ,DTH bits and other Tungsten carbide brazed products; the products mainly use for, Road milling, surface mining ,tunneling, trenching and rock drilling and Recycling etc,we also supply other matched Tungsten Carbides products. We have many years production and exporting experiences in these field .We have very good relationship and reputation among our customers. Products as follows: 1.Mining Bits( or Picks,Cutters) Our mining bits/picks are widely used on various underground or surface mining machines of Chinese and International Brands. 2. Rock Drill Bits Our rock drill bits consist of chisel, cross and button types. They are used for different rock formations. We can provide drill bits for various rock drill jumbos and facilities in the world. 3. Foundation Drilling & Trenching Tools Our cutters & teeth can be used on various foundation drilling, HDD (Horizontal Directional Drilling), Trenching, Cold Milling Machines of famous domestic or international brands. 4. Rotary Drilling BitsWe customize milling bits for various cold milling machines of well known international brands such as Wirtgen, CMI, Bitelli, Madni, Cartepillar, Roadtech, Dynapac, etc and Chinese brands. 5. Down the Hole BitsWe can manufacture low air pressure and high air pressure DTH bits 6. Shield Driving and TBM Cutters Our Cutters have better anti-abrasion and impact-resistant properties. They can be used on all the shields and TBMs of Chinese brands, also, they can be used on those of world known brands such as Herrenknecht, Robbins, Wirth, Komatsu, Mitsubishi, Hitachi, Kawasaki, Rasa, Iseki, Ishikawajima Harima, Seli, and lovat and so on. We can do more^^. We have very strong technical and producing experiences to make best quality tools. We are developing our business relationship with many Famous rock tools and Tungsten Carbide companies in world. We have approval ISO9001:2008 Quality System Certificate. We assure that we will give you best quality products and service to meet your requests.