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| heat tunnel (A device used to apply heat to plastic wrapped packages, shrink labels, preforms and combo banded packages to cause the film to shrink and fit tight to the product. The product, with the film in place around the container or package, is place on a conveyor belt which moves through the tunnel. The tunnel is heated to a temperature high enough to make the film shrink and fit tight to the product. Sukhopleschenko) | |||
| heat treatment tube (M.Mann-Bogomaz.) | |||