Anyone know what this does ?. 110 volt, plug it in and then there are two switches on the sides. The other button starts a motor and the gripped rollers show start to revolve. Engraved on to it roughly is Terracon It has been suggested that it may be for welding tarpaulins or wagon curtain side, but when I google that all I can see appear to involve Leister hot air plastic welding guns.
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