German Finance Minister Christian Lindner on Friday warned against entering into a trade war with China, amid a debate over possible punitive tariffs by the European Union on Chinese products. Lindner said that EU countries must react to dumping and unfair practices but must not weaken free and fair global trade as a whole “because trade wars only have losers, they cannot be won.” Lindner made his remarks at a meeting of finance ministers from the Group of Seven (G7) wealthy democratic countries in northern Italy. A possible joint response to China’s industrial policy and how to deal with comp…