Assertion: crampon | /r/MadeOf | aluminum
Facets:
value: usually
type: TEMPORAL
Source sentences:
text: Crampons are made of steel, stainless steel or aluminum.
text: Crampons are made of steel or aluminium and have spikes which cut into the ice, thus ensuring good traction.
text: You should note, however, that these crampons are made with aluminum so they probably won’t hold up in the most rugged of conditions.
text: Some crampons are made of aluminum, while others are made of steel.
text: The crampons are usually made of stainless steel or aluminum while the bindings are in most cases made of durable nylon.