On August 13, 2020, our company won the bid again for a C100-1.5 sulfur exhaust booster fan in Yan 'an Petrochemical Plant of Shaanxi Yanan Petroleum Group, which was the third time that our products were used in the sulfur recovery unit of the company. The blower has replaced the traditional single-stage high speed centrifugal blower, and the cost of use and maintenance has been greatly reduced.