leakage in the power steering fluid pipe

[rex]

Dear colleagues,
can anyone kindly advice me on how best to amend a leakage in the power steering pipe (I guess it is copper). I have tried to look for a new one from the spare parts dealer but to no sucess. The bleeding is gradual and sometimes drops on the exhaust pipe to produce fume of smokes. I am in a dying need for advice. If anyone of you happen to have a wreck lancia dedra 1990 model 1.6ie, I would appreciate you kind help.
Thanks
Rex
(Finland)