There was a Weifang Occupational Skill Competition for 2012, for master-control technicians and boiler operators, at the Shandong Haihua (Group) Co, Sept 11-12, where Xu Aiyong, Jiang Yingbo, Sun Yongqiang, Xu Ming, Zhang Weili, Deng Xiaoliang, Han Xuri, and Sun Peng from the Shandong Changyi Petrochemical Co took part.