finned tubular heater (1)
finned tubular heater is constructed like basic tubular elements with the addition of continuous spiral fins, 4-5
finned tubular heater (2)
finned tubular heater is constructed like basic tubular elements with the addition of continuous spiral fins, 4-5
finned tubular heater (3)
finned tubular heater is constructed like basic tubular elements with the addition of continuous spiral fins, 4-5