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Kevlar
A strong, synthetic fiber used in bulletproof vests and other protective gear, known for its high tensile strength and resistance to abrasion.

Polycarbonate
A durable and lightweight plastic often used in eyewear lenses, glazing, and protective gear due to its high impact resistance.

Graphene
A single layer of carbon atoms arranged in a two-dimensional honeycomb lattice, known for its exceptional electrical, thermal conductivity, and strength.
Steel
An alloy made primarily of iron and carbon, known for its strength, ductility, and use in construction, tools, and machinery.