| Modello | Diam * lunghezza | Gamma di corrente standard (A) | |
| mm | Pollici | ||
| B503.2 | 3.2*305 | 1/8*12' | 130-180 |
| B504 | 4*305(355) | 5/32*12'(14') | 150-200 |
| B505 | 5*305(355) | 3/16*12'(14') | 200-250 |
| B506 | 6*305(355) | 15/64*12'(14') | 300-350 |
| B506.5 | 6.5*305(355) | 1/4*12'(14') | 320-370 |
| B507 | 7*355 | 9/32*14' | 350-400 |
| B508 | 8*305(355)(510) | 5/16*12'(14')(20') | 400-450 |
| B509 | 9*305(355) | 23/64*12'(14') | 450-500 |
| B510 | 10*305(355)(510) | 3/8*12'(14')(20') | 550-600 |
| B511 | 11*305(355)(510) | 7/16*12'(14')(20') | 700-750 |
| B512 | 12*305(355) | 15/32*12'(14') | 850-900 |
| B513 | 13*305(355)(430)(510) | 1/2*12'(14')(17')(20') | 800-1000 |
| B516 | 16*355(430)(510) | 5/8*14(17')(20') | 1000-1200 |
| B519 | 19*355(430)(510) | 3/4*14(17')(20') | 1400-1500 |