HEATING SYSTEMS COMPRISED PRIMARILY OF TUBES, PIPES, PRE-ASSEMBLED MANIFOLDS, TAPES, TAPES AND REGULATING ACCESSORIES FOR WATER PIPES, PIPES IN WHICH COLD AND/OR LOW TEMPERATURE WATER CIRCULATES

heating systems comprised primarily of tubes, pipes, pre-assembled manifolds, manifolds, tapes and regulating accessories for water pipes, pipes in which cold and/or low temperature water circulates