... finned tube making machine 1.G fin, L fin, LL fin, I fin, E fin, KL fin2.Available Processing Technic: High-frequency welding ... TubeStainless Steel TubeAlloy Steel MaterialAlloy Steel MaterialIntegral Copper & Copper Alloy High Finned TubeC12200, C11000, C70600C12200, C11000, C7060015.88~22.235~9FPIMax ... TubeAll Kind of Material--6.35~402~9FPI finned tube making machine