HAS of machine in factory which manufactures plastic objects. Coloured plastic pellets are seen pouring into hopper. MCS of plunger of molding press in action. Two CSs of console of machine, of hand pushing button, of man standing by console. MSs of large plastic object being shaped by man. MS of testing apparatus as man opens door, removes piece of plastic. Several HASs of different coloured plastic pellets pouring down a chute. CUs of stream of red pellets. CSs of man's hand working on testing appartus. LAS of plastic material speeding round a roller (dark except for light illuminating plastic). Two MS of operator machine-filling plastic bags with unidentified product. Shot of large pump in action in factory. MS of piston arm going back and forth. Two CUs of plastic sheet going through rollers. CU of raw cellulose nitrate plastic coming out from between rollers of machine, man in foreground supervising, TILT DOWN to strip being torn from sheet on roller. MS of operator machine-filling plastic bags with unidentified product. MS of dryer machine, operator at console. Man pushes button and plastic sheet is cut.