Material: Copper tube copper fin, copper tube aluminum fin, aluminum tube aluminum fine, the didest fin is 38
Conventional diameter of external connecting copper pipe:19mm, 22mm, 28mm, (except for special requirements)
Wind hood hole diameter: 210mm, 260mm, 300mm ,310mm, 185mm are all flanged.
Wind hood hole diameter 115 210mm ( not commonly used) 238 (240) , 240mm withoug flanging
End plate conventional : aluminum plate or galvanized plate
Copper pipe internal thread: 9.52*0.25+0.177*0.25*0.18