SECESPOL

[ Pipes of metal, metal flanges, metal pallets, containers of steel for transport and storage ]

Heat exchangers, being parts of machines [ ; steel constructions, namely, steel frames in the nature of mounting brackets adapted for use with heat exchangers and heat exchanger blocks being parts of machines ]

Heat exchangers not being parts of machines, battery-operated heat exchangers [ , solar collectors for heating, distributor ducts for central heating systems, capacitive water heaters, pressure tanks for hot water heating, heat accumulators, hydrophores for circulating water and brines, pressure desilters for water filtration, collecting vessels for central heating installations, heat pumps; steel constructions, namely, steel frames in the nature of mounting brackets adapted for use with heat exchangers and heat exchanger blocks not being parts of machines ]

[ Insulating materials of plastic ]