knurled l fin tube
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SA179 Knurled Fin Tubes With AL1060 Fin
KL Fin (or Knurled L fin): with metal strip wounded on the core tube with knurled suface The fin is wrapped around the tube and the foot is rolled into the outer surfaceof the pre knurled tube and secured at each end. Gives good surface protectionto the tube and improved heat transfer compared to the L or LL type fin. Usedfor moderate temperature cool applications.
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