Established in 2004, at the very beginning, we were subcontract factory of Shengda Flange, which was regarded as No.3 of stainless steel flange manufacture in Jiangsu, only after Hua'n Flange and Sanlin Flange.

In Oct. of 2005, our Quality Management System was approved firstly by NGV
 
In 2008, news machines added, and we can finish the whole process by ourselves. At the same year, we were approved by TUV as per PED 97/23/EC
 
In May of 2009, our Quality Management System was re-audit by NGV, and get certificate
 
Till 2010, we cover 10,000 m2 of total area, including 6,000m2 of building area, with totally 150 employees. Besides, our Quality Management System was approved by WSF
 
In 2012, we have three series of products,  stainless steel flange, duplex steel flange and carbon steel flange in accordance with ANSI, EN, DIN and JIS standard. Most importly, we got TS (Manufacture License of Special Equipment pressure vessel, Grade B)
 
In July of 2013, Mr Gu is our new legal representative, and establish our own brand "GS"
 
In Aug of 2013, we start production of new product, namely valve seat ring, and export to Italy
 
In Sep of 2013, our website in English www.stainless-steel-flange.com was on line