2013.9 China established the first national test of free trade zone - Shanghai Free Trade test area . In this environment , in order to comply with national call , combined with the company's own development , the company in December 2013 the headquarters moved to Shanghai , Lanzhou Trade Zone , Shanghai set up the column letter Stainless . Company settled the test area of free trade , can enjoy the advantages of a national policy , taxes, etc. , the customer can get preferential prices and better service. The company will continue to uphold the integrity of the enterprise , to continue their efforts to create brand and corporate road .