Russian President Vladimir Putin focused on trade and cultural exchanges Friday during his state visit to China that started with bonhomie in Beijing and a meeting with Chinese leader Xi Jinping that deepened their " no limits " partnership as both countries face rising tensions with the West.

Putin praised China at a China-Russia Expo in the northeastern city of Harbin, hailing the growth in bilateral trade. He will also meet with students at Harbin Institute of Technology later Friday. Harbin, capital of China's Heilongjiang province, was once home to many Russian expatriates and retains some of those historical ties in its architecture, such as the central Saint Sophia Cathedral, a former Russian Orthodox church.