Guangxi Cummins is an important part of Cummins'global production system. It makes full use of Cummins' R&D platform, operation system and quality management system, combines with the characteristics and requirements of construction machinery working conditions, creates the exclusive power of construction machinery, and produces Cummins QSB7 series and L9.3/QSL9.3 series of construction machinery exclusive Middel Power diesel engine meets Chinese off-road II/III, European Stage IIIA and American Tier 3 emission standards, and has the ability to upgrade to phase IV emission.