Rusty Fuel Pipes

Hi
Howmany pipes are prone to rust on the golf, GTI MK 1, 83
There are two running up to engine bay[rusted]
there is one from pump to accumulator[rusted]
IS THERE ANOTHER PIPE IN THIS AREA.,PRONE TO RUST.

All pipes are prone to rust unless they have been replaced with plastic covered or pipes or braided hoses