The Scale-Symmetric Theory (SST) shows that the internal dynamics of the core of proton leads to superconductivity. The first, second and third phonon fields are created due to the electroweak interactions of the oscillation masses, radiation masses and masses of the electron-positron pairs, respectively. The composite phonons (they are the entangled spacetime condensates) are responsible for creation of both the spin-0 Cooper pairs and boson condensate composed of the Cooper pairs. We calculated that at atmospheric pressure, critical temperature of the Type II superconductors can be from 4.4 K up to 148 K. We calculated also that at extreme pressure, for relative volume equal to 0.67, critical temperature is 304 K. We show that it is impossible to make a material that is a superconductor at room-temperature and atmospheric pressure.