We're one of the largest manufacturer for dth rock drilling tools in China since 2002. Dth drill pipe, dth hammer, dth bits for mining, water well, geotheromal, piling and foundation, deep holes are our main products. Large diameter hammers and bits are our unique products. Professional solutions for 3" to 32" holes are available. We have CE,ISO and TUV certificate. With more than 80 sets of equipment, we have the capabilities for 50 Million USD. There are about 300 emplyee in our company. Usually we ship from Shanghai, Shenzhen or Changsha. The goods are delivered to all over the world,especially Northern and western Europe, Australia,Southeast Asia, Middle east,South america and Africa.