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[PCB] Is 0.15mm minimum trace/space considered equivalent to 6mil minimum trace/space?

I have a PCB design with minimum trace/space 0.15mm. In your Online Quote for Standard PCB, is it sufficient to specify "6/6mil", or do I have to specify "5/5mil"?

[PCB] What is the function of the track around this PCB?

Is this only to look cool or does having the copper exposed like this add any functionality? It's a PS3 Camera PCB.
Ranking Name Answers
1 Rcdude10tc32 6
2 Ivan Petrov 1
3 Jesper 1
4 orionspacenepal 1