DINGSHANG is specializing in industrial stainless steel welded tube and special alloys tube, with annual production capacity up to 7,000 tons. The tubes are produced to conform to GB, ASTM/ASME, JIS, DIN, EN, GOST and ISO standards. 
Due to excellent technicians, advanced production equipment, satisfactory inspection and testing equipment and perfect quality assurance system, DINGSHANG has got quality management system ISO9001, EU pressure equipment directive PED and AD2000 all issued by the Lloyd's, and also Chinese national special equipment manufacturing license (TS certificate).