L, LL, KL finned tubes, G embedded fin tubes, (serrated) extruded finned tubes, high frequency welded (serrated) fin tubes, Laser welded fin tubes , hot dipped galvanized oval (elliptical) finned tubes, rectangular
Extruded Finned Tubes - Sunflex Metal Industries
Finned Tubes, Extruded & Helical High Finned Tubes
Extruded Serrated Finned Tube, Bi-metallic Fin Tubes