Copper brake lines are illegal in Australia & New Zealand too i believe. Over here, while hopefully not common, it's not unheard of for shops to "confuse" copper with cunifer and probably visa versa... it's happened on the forum at least once IIRC and a mate of mine mail ordered a roll of cunifer when we rebuilding his car but received copper. Colour was the first clue, being marked up as BS whatever C106 was the confirmation as cunifer would've marked cw352h or c70600