The fins are rolled out of the wall of the plain tube. Tube
and fin are consisting of one piece. Advantages: Excellent heattransfer, good
bending properties, wide range of material can be used.
copper low fin tubes ( finned tubes ), normal materials:
ASTM B 75 / B 111 No. 12200, ASTM B 75 / B 111 No. 142, ASTM B 111 No. 44300, ASTM B 111 No. 68700, ASTM B 111 No. 608, ASTM B 111 No. 70600, ASTM B 111 No. 71500