steel fin tube with extruded aluminum fin

1.steel fin tube with extruded aluminum fin
2. tube material:stainless steel or carbon steel
3.fin material:aluminum
4.fin type:extruded
5.tube size:18mm,21mm,25mm,32mm,45mm
6.tube thicckness:2.0mm.3.0mm
7.fin height:10mm 12mm,12.5mm
8.fin thickness:2.0.3.0mm
9.longest:6000mm

steel fin tube with extruded aluminum fin