film. the chain link tunnel. cutting the film. wrapping machine sealer machine bag sealing machine scene . sealer . and seal it tightly. seal belt. auto sealer . semi-automatic sealing machine . air bag off . seal belt. sealing machine foot pedal. seal gas . sealer nitrogen. seal air vent . the glass

film. the chain link tunnel. cutting the film. wrapping machine sealer machine bag sealing machine scene . sealer . and seal it tightly. seal belt. auto sealer . semi-automatic sealing machine . air bag off . seal belt. sealing machine foot pedal. seal gas . sealer nitrogen. seal air vent . the glass