Machines for grinding and parts therefore, namely, ceramic marbles composed of a mixture of electro-melted zirconia and silica and oxides for use as grinding agents, micro-grinding agents, dispersion agents for said grinding and milling machines for use in the paint, varnish, ink, pigment, colorant, magnetic lacquer, enamel, mineral charge, phyto-sanitary product and cosmetic industries

Chemical engine treatments and additives for engine oils, gasoline and diesel fuels, transmission fluids and cooling systems