In the face of various pressures from the outside world, however, China's single screw compressor industry is not discouraged, but more tenaciously summarizes experience, draws lessons, re standardizes technology, looks for new processes and new materials, develops new screw and star wheel processing special machines, determines industry standards, and a hot fire is burning in the single screw compressor manufacturing industry. Professor Jin Guangxi of Xi'an Jiaotong University worked hard to enter and exit the single screw compressor plant to give technical support and guidance. The single screw compressor has been very different today, and has made great progress in technology and process, and the application of new materials has greatly improved the quality. At present, each single-screw compressor manufacturer designs, manufactures and tests each single-screw compressor according to the industry standard (Note: Many rigid indicators in the single-screw compressor industry standard are higher than those in the double-screw compressor industry index, such as specific power). This makes the market credibility of single screw compressor drive upward trend. This is the commendable result of the joint efforts of the single screw compressor industry.