... portable heat sealing machine,easy to carry, easy operation, good sealing effect, failure rate, the best portable sealing machi ELIDA ELD-400 portable sealing machine | Hand clamp-sealing machine ... foil, metal can be heat sealed, easy to carry, easy to use. ELIDA hand clamp-sealing machine for large packaging or difficult ... potentiometer, to the ON direction of rotation. portable heat sealing machine