Brazilian Dodge Dart 76 (similar to 69 usa)

I bought a new toy.. a double flaring tool

I tested it using using an old brake tube.. I know that original tubes are welded.. thus, final result was exactly what I expect.. deformation and tube cracking...

I will buy a tube without weld or a copper tube.. don't know which of these two (copper or stain withou weld tube)...

there follow some photos