| 摘要 |
PCT No. PCT/IT87/00077 Sec. 371 Date Apr. 5, 1988 Sec. 102(e) Date Apr. 5, 1988 PCT Filed Jul. 31, 1987 PCT Pub. No. WO88/01039 PCT Pub. Date Feb. 11, 1988.A heat exchanger, particularly a radiator for the heating of buildings is formed with a modular unit comprising a tubular finned element of extruded aluminum in which upper and lower headers of die-cast aluminum are engaged by an interference fit and a sealing O-ring gasket. The headers being connected through couplers by bayonet type coupling. The unit being completed passivated and/or anodized against corrosion.
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