MS of laboratory technicians (man and woman) at work in control room. MS of woman and man technicians taking reading of gauge of rendering vat. CS of hand removing synthetic rubber from beaker. MS of woman technician measuring pressure on scale. CS of piece of synthetic rubber being tested on scale. MS of group of women technician at work in laboratory. LS of Polymer Corporation factory on top of hill, PAN to MS of shack. LS of Polymer Corporation factory buildings. CS of finely ground rubber in cutter. MS of woman technician changing chart forms in control room.