*Material of fins: Stainless,Carbon&Alloy steel
*Material of Core tube :Carbon steel,Alloy steel or Stainless steel ,
*Type of base pipe:Seamless,Welded
*Type of fins:Single H /Double H
*OD of base pipes: 15-219mm
*WT of base pipes: 1.2-16mm
*Height of fins: 10-200mm
*Width of fins:12-100mm
*WT of fins: 1-5.0mm
*Pitch of fins: 2-30mm
*Length of tubes: ≤23m