I remember that stuff. Many years ago I had a 1952 Land Rover, and had to replace some brake pipes. The dealer sold me a steel one, right length but not bent to shape. I found it impossible to do a 3-D bend in it, under the floor, without kinking it. In the end I managed to buy the copper alloy stuff, get the unions, flares etc. put on, and found that much better. But more expensive!