changsha shungao mechanical and electrical equipment co., ltd. is a high-tech enterprise dedicated to the research, production and sales of air compressors, intelligent low-pressure powder conveying systems, and material pneumatic conveying systems. sany heavy industry, zoomlion heavy industry, xcmg group, china railway construction’s long-term supporting suppliers, xiongan new area, china resources group, huaxin cement, and western construction all use shungao compressed air systems.