Stak Inc is a holding company principally engaged in the research, development, manufacture and sales of oilfield-specialized production and maintenance equipment. The Company’s products include oilfield vehicles such as oil pumping trucks, oil-well repair trucks, fracking trucks, well flushing-wax removal trucks, and boiler trucks. The Company also produces specialized equipment and components for oil well repair and maintenance, fracking, oil well cleaning and wax removal, oil pumping, and boilers.