Square H Fin Welded Heat Exchanger Fin Tube with SS 409/ SS410: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of Square or Rectangualr Fin Tube.
SA210 Gr. A1 Seamless Carbon Steel Rectangular Double H welding Fin Tube for Economizer: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of Square or Rectangualr Fin Tube.
BS3059 PT 1/ 2 OD 2'' HH Fins Marine Boiler Square Fin Tube with 90 Degree Bends: Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of Square or Rectangualr Fin Tube.
