Ruian,an coastial city in china east-southern,has been praised \"The capital of auto parts\",and \"the birthplace of wenzhou economic model\" for a long time. Runjin Auto stud parts corporation is located in Ruian City,Wenzhou Region,Zhejiang Province,where is one of the most developped coastal area in China,and also is a place where owns the beautiful sceneries, outstanding talents, gathered merchants.