In the southern of Far East Russia region. the principles of the constant ratio of natural radioactive elements (NRE) has been formulated by the author using a large volume of statistical data. supported by mathematical computations and affirmed by a long-term field experience. It was developed the basis for determination of geodynamic types of the magmatic (MC) and structural-substan... https://www.ealisboa.com/great-deal-Pentair-Union-Collar-2-U11-200PS-super-offer/