.The company applies new prices 3/20/2008
         Since March 15th,2008, the company has applied the new prices. The prices have some adjustments.Drilling tools with large diameters and overburden drilling tools have increased.The prices will be stable in the whole year.The cause of the adjustment is the increasing cost of steel and cemented carbide teeth.The notices and instructions are being sent to the clients.
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 DTH drilling tools with large diameters  Overburden Casing System
 
     
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  Tianhe will be on Bauma China 2010  8/28/2010  
  New Products---TH330 DTH　Hammer & Bit  8/24/2009  
     
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