What is the resistance of a 0 ohm resistor? Is it possible to reach one milliohm? Just want to know the exact range

I'm the representative of physics class. Let's study together
For your question
My answer is: any object has resistance... And it's not equal to 0
Even if it's a wire. It has resistance. It's just that the resistance is almost equal to zero
So even if the resistance of an object is 1 milliohm, it should be superconducting