Short answer: Maybe.
Since your world is fictional, you can do things however you’d like.
Realistically, the answer is “sort of”. Solids for the most part do not liquefy under high pressure. However, under very strong forces, many solids can act like liquids. Not so much pressure, mind you, since that comes from all sides, but if a very strong force pushed aluminum through a hole, then the aluminum would pass through much like play-doh.
At high enough pressures, your solid stops being regular matter at all and you’re left with the stuff neutron stars are made of – at first just a soup of electrons and protons, and then solid neutrons.
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