79085709
Mar 4, 2010
Aug 23, 2011
Drilling machines for installing casings in various ground conditions; drilling system tools and parts thereof, namely, drilling rods, drilling pipes, drilling steel, pole drilling steel, soil drilling steel, ring bits, pilot bits, extension drill rods, casing pipes, casing shoes, jointing sleeves and guide bushings for drilling rods and drilling pipes; drill bits, machine tools and parts thereof for casing drilling and installing casings
MachineryInstallation, repair and maintenance of drilling systems and drilling tools
Building Construction and Repair