PingXiang Sunshine Machinery & Electronic Co.,Ltd is a professional manufacturer which specialized in producing the turbocharger parts (journal bearing、piston ring and VNT nozzle ring). Our company established in 2002 as the earliest domestic company in this field. We have a series of materials for piston rings mainly are chromium-molybdenum alloy steel, tungsten- molybdenum alloy and stainless steel. Different hardness journal bearing series and nozzle rings had been produced hundreds of models. We have ISO/TS16949 certification and ISO9001:2000. The products are exported to Europe, America and other countries.