SECTION:	solid octagonal, defined by the diameter written in centimeters, which can be constant to all the length (constant section piles) or varying in 1.5 cm per meter of length (piles of varying section)
LENGTHS:	For standard Piles, 4.00 to 16.00 meter length. In the case the pile length needs to be longer, it could be solved by attaching several pieces by means of welding metallic skullcaps built-in both ends of the parts, o con vaciado de juntas con mortero epóxico.
CONCRETE RESISTANCE :	Concrete’s minimal average resistance on cylinders is: R.cc. after 24 hours: 220Kg/cm2 R.cc. after 7 days: 330 Kg/cm2 R.cc. after 15 days: 370 Kg/cm2 R.cc. after 28 days: 440 Kg/cm2
REINFORCING STEEL :	Calculated to resist the pressure created by the elevation, transportation, driving and the static charges that it takes.
TRANSPORTATION:	The transportation of the piles is by means of trucks and it goes from the deposit to the place where they are going to be installed.
DRIVING:	The driving is done with diesel hammers type “KOBE” K’13, K’25 or K’35 which move on a way on a gantry crane, what permits using other equipment in special cases. The piles can be put into place vertically or not completely vertical.
REJECTION:	During the driving, resistance to dynamic penetration of the pile is controlled. This resistance is related to admissible capacity, through the application of proper driving formulas.