The wire is made out of a material that is not a good conductor.
High Resistance wires are made up of a material that is not a good conductor of electricity in order to control the amount of current in a circuit.
Copper does not have a high resistance instead because of its low resistivity and high conductivity it is used in electrical wires widely.
Materials that are very good conductors have very low resistance and cannot be used in high-resistance wires.