In August 2021 JYC cooperated with a company of China Gas Company (Central China), we provided China Gas Company with the repair and renovation of Roots Blower, which improved the airtightness and blower performance of the company's old equipment, the senior management of the company admired JYC's product technology and production level, and purchased 4 sets of JYSR-300 Zero-Leakage Roots Blowers from JYC.