Bimetallic Finned Tubes Bare Tubes Materials:Bare tubes can be of ... and prevents dissimilar metal contacts at the fin root.The bimetallic tube is consisting of a base tube and an aluminium ... heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration, solvent ...