chemicals for use in industry and science, namely, chemicals for use in oil drilling, tempering chemicals for use in smoldering, chemicals for use in the manufacture of gasoline, and chemical oxidants for use with combustion engine fuels; oleochemicals and their derivatives; oleofins; hydrocarbons, for use in welding; hydrocarbon chemicals; esters and their derivatives for use in drilling; chemical additives for drilling muds, muds to facilitate drilling; unprocessed, natural and synthetic fa...