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Base
Tube Material
Carbon,
Ferritic, Low / High Alloy and Stainless Steel.
Tubes quality / type can be Cold Drawn Seamless [CDS], Hot Finished Seamless
[HFS], Electric Resistance welded [ERW].
Fin
Material
Carbon
Steels, Corrosion Resisting Steels ie. Corten, High Alloy ie.
409 Ferritic Stainless and various grades of Stainless Steel.
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