Coulomb-Newton-Estakhr's Law of Gravitational Force and Eatakhr's Elementary Gravitational Mass Constant

I reformulate Newton's law of Gravitation base on Coulomb's law of the electrostatic interaction between electrically charged particles. first I consider Newton's Gravitational Constant $G$ as Coulomb's constant of Gravitation $k_g=\frac{1}{4\pi\epsilon_g}$. Where the $\epsilon_g$ is permittivity of Gravitational mass. So Gravitational Force is $F_G=k_g\frac{Mm}{r^2}$ then I consider Gravitational mass as a fraction of Estakhr's Elementary Gravitational mass Constant $M=n_1\mu_g$ and $m=n_2\mu_g$ where the $\mu_g$ denotes Estakhr's Elementary Gravitational mass Constant and $n$ denotes natural numbers. So Coulomb-Newton-Estakhr's Law of Gravitational Force is: $F_G=G\frac{n_1n_2\mu_g^2}{r^2}$ . then $\alpha_g=\frac{G\mu_g^2}{\hbar c}$ where the $\alpha_g$ is gravitational fine-structure constant and $\hbar$ is planck's constant and $c$ is speed of light, $m_p^2=\frac{\hbar c}{G}=\frac{\mu_g^2}{\alpha_g}$ then value of Estakhr's Elementary Gravitational mass Constant is $\mu_g=m_p\sqrt{\alpha_g}$ where $m_p$ denotes planck's mass, Estakhr's Elementary Gravitational mass Constant $\mu_g$ is a new fundamental physical constant and then by this way Covariant formulation of electromagnetism is applicable to Gravitation.