PSp box piles
Designations of the box piles :
- Form 10 single pile without locking bars
- Form 12 single pile with 2 locking bars
- Form 14 single pile with 4 locking bars
- Form 22 double pile
- Form 24 double pile with 2 external locking bars on one flange side
- Form 26 double pile with 4 external locking bars
- C1 and C23 pile combinations with different number of locking bars