Check out this thread on The Samba.
Bottom line:  It's not necessarily a catastrophe.
http://www.thesamba.com/vw/forum/viewtopic.php?t=305710

Allan Streib wrote:
> In case anyone wants to check, this line is marked thusly:
>
>   CRP NBR/CR N18030E 7,5 x 3 08/31/07
>
> I think it is probably NOT German origin because they would not write
> the manufacture date that way but that's just a guess.
>
> Allan
> --
> 1991 Vanagon GL
>
> Benny boy <huotb@VIDEOTRON.CA> writes:
>
>
>> World Pac line are pure crap, i have installed many and i had to start
>> the job over. Careful here, World Pac as some great parts for Vanagon.
>>
>> World Pac is an American distributor with some warehouse in
>> Canada. You can't buy directly from them. They specialize mostly in
>> German parts. In general they have very good OEM part quality. But,
>> lately, even stuff like Bossal muffler are made in the
>> Philippine... and that muffler is pure CRAP.  Use the Ernst muffler
>> instead with a good Canadian made Emico Cat.
>>
>> The best FI line i found so far are the one sold at Small Car. They
>> are German Mercedes FI line.
>>
>> To your / the problem: those line crack on the outside layer, even if
>> that scary it's not critical. Not acceptable but not
>> critical.... still.
>>
>> Benny Boy
>> http://www.benplace.com/fuel_line.htm
>>
>>
>
>