Workers weld at a workshop of an automobile manufacturing enterprise in Qingzhou City, east China's Shandong Province, June 30, 2020. The purchasing managers' index (PMI) for China's manufacturing sector ticked up to 50.9 in June from 50.6 in May, the National Bureau of Statistics said Tuesday. (Photo by Wang Jilin/Xinhua)

A worker is seen at a factory in Lianyungang economic and technological development zone of Lianyungang, east China's Jiangsu Province, June 29, 2020. The purchasing managers' index (PMI) for China's manufacturing sector ticked up to 50.9 in June from 50.6 in May, the National Bureau of Statistics said Tuesday. (Photo by Wang Chun/Xinhua)

Workers of a quartz glass company check quartz tubes at Jinping industrial park of Haizhou District in Lianyungang, east China's Jiangsu Province, June 30, 2020. The purchasing managers' index (PMI) for China's manufacturing sector ticked up to 50.9 in June from 50.6 in May, the National Bureau of Statistics said Tuesday. (Photo by Geng Yuhe/Xinhua)