Whats the best way of connecting high pressure rubber fuel lines to copper pipe?

Im thinking of changing my fuel pump location and will be needing to connect rubber to copper and i dont think that just slipping one over the other and some hose clamps will do the job under high pressure, about 4 bar on my setup.

What is a good way to do it?

ive put a flare on my copper pipe using a brake pipe flaring tool. gives a nice little ridge to go over, the fuel hose clamp.

This is for a low pressure set up though so not sure how much pressue it will take

flare on pipe and proper fuel hose clamps works for me with 3bar pressure

cool thanks guys, ill give that a go