BERLIN - Hot on the heels of Barack Obama’s visit to the EU capital, Chinese President Xi Jinping will spend three days in Belgium this week.He will meet top EU officials in Brussels on Apri to discuss prospects for a China-EU free trade treaty, security co-operation, and global governance. He will also speak at the College of Europe in Bruges and visit two pandas, donated by China in February as “friendship envoys,” at a zoo in south-east Belgium.