A two-way air pump includes a housing, an air flow controller, a check valve, and a valve actuator. More specifically, the system includes a cylindrical housing, check valves in communication with the housing and an moveable shaft with multiple sealing members along its length. The information about the intensity of the activity of the pharmacologically active substances of the natural products allows effective utilization of the natural products. Access at the requested higher transmission rate is based on a comparison of the first and second indicators relative to the established blocking threshold value. The judging device judges whether the filtered voltage is lower than a predetermined threshold. The workpiece is maintained in accurate registration a punch press by optical sensors at each station.