China wants to reach an initial trade deal with the United States, President Xi Jinping said Friday, but is “not afraid” to fight back when necessary and will enact economic reforms at its own pace. It is rare for Xi to speak so directly about the trade war, and his comments come two days after US President Donald Trump complained that Beijing had not made sufficient concessions so far, making him reluctant to conclude a bargain. The world’s two biggest economies have been locked in a bruising trade conflict for more than a year, hitting each other with volleys of tariffs on hundreds of billions of dollars worth of goods.