CSR QSYRI is devoted to the R&D of welding processes and equipment for stainless steel, aluminum alloy and alloy steel. The company is equipped with advanced welding and cutting equipment including longitudinal sheet welding machines, NC air plasma cutters, Miller aluminum alloy welding machines, LVD NC sheet shearing and bending machines, large-sized vacuum brazing furnace ,Panasonic CO2 welding machine, double pulse SAF inverter MIG/MAG welding machine ,square wave DC welding machine ,and has developed and manufactured aluminum air reservoirs, water tank ,battery box, water-cooled radiators, heat exchangers and integrated air circuit boards which  have successfully found their applications in high-speed trains, metro vehicles, light rail vehicles, etc.