RUIAN LIANZHONG AUTO PARTS CO.,LTD., founded in 2006, covers an area of 12000 ㎡, is a collection development, manufacturing and sales of steering knuckle in one of professional enterprises, has advanced automatic casting workshop and finish machining nc workshop. The company has advanced and comprehensive testing equipment, such as three coordinate measuring instrument, hydraulic universal testing machine, salt spray test chamber, spectrometer, magnetic particle inspection, metallographic microscope, metal detector and portable hardness tester, etc.. Rely on technology for development, rely on quality for survival. By 2016, united auto's products have covered as many as 40 automobile brands, and the total number of models has reached more than 400. The average monthly production capacity is about 50,000 knuckles, and about 50 new products are invested in research and development every year. The company passed the ISO/ ts16949:2009 quality system certification in 2010, and passed the IATF 16949:2016 quality system certification in 2017. To further improve the process control from research and development to finished products, the company has a strong supporting capacity for mainframe. Multi-player with leading domestic and world synchronization "is the management idea, it will be as a loyal, reliable and capable partner in a more comprehensive series of products, on time delivery, competitive price and perfect hardware condition, and a positive attitude global auto after-sales service market and host form a complete set, both at home and abroad jointly open community has a distinctive innovation cooperation mode.