| This special elastomer is available in various properties of hardness and toughness and is resistant to abrasion. |
| But his mental toughness remains a question mark, which is a key to the consistency and determination required for Le Tour. |
| They are not weldable, have poor ductility and only poor-to-fair toughness depending on carbon content and hardness. |
| When cast steels are quenched and tempered, the range of strength and of toughness is broadened. |
| Don't underestimate the toughness of the hills in the last 6 miles of the race. |
| This team is Jeff Kent's toughness and Clemens' experience and Lidge's unhittable slider. |
