The machinery to carry out the following kind of piles is available:

     • CPI-4 Extraction piles with recoverable
tubing

     • CPI-5 Extraction piles with lost jacket

     •CPI-6 Perforated piles without tubing
with thixotropic sludges

     •CPI-7 Drilling piles without tubing

     • CPI-8 Drilling piles, central tube
concreting drill bit