“The provisions of Articles 28 and 29 shall not preclude prohibitions or restrictions on imports…justified on grounds of …the protection of industrial and commercial property. Such prohibitions or restrictions shall not, however, constitute a means of arbitrary discrimination or a disguised restriction on trade between Member States.”
“1. The following shall be prohibited as incompatible with the internal market: all agreements between undertakings …which may affect trade between Member States and which have as their object or effect the prevention, restriction or distortion of competition within the internal market, and in particular those which: (a) directly or indirectly fix purchase or selling prices or any other trading conditions…. ”