Application: It is widely used for Heat exchanger ,Air-conditioner ,refrigerator,economizer
and other parts of Heat Industry.
Material of Spiral fins: Stainless Steel or Carbon steel
Material of Core tube:ASME SA179,st35 ,st52,ASME SA210,ASME SA192,EN10216-2 Carbon steel 
Type of base pipe:Seamlesss,Welded 

Type of fins:H or HH fins
OD of Base pipes: 15mm-219mm
WT of base pipes: 1.2mm-16mm
Height of fins: 3mm-30mm
WT of fins: 0.4mm-3.0mm
Pitch of fins:  1.2mm-20mm 
Length of tubes: ≤23m
Note:We can negotiate with customer about their other request.
Plastic caps on both ends.Clear varnish for anti-corrosion.