Our product specifications covers Dia.6-219mm & wall thickness 0.5-20mm, maximum length 19m, which can be produced according to different standards such as the State Standards, Metallurgy Ministry Standards, U.S. Standards, and German Standards. The enterprise also achieved ISO-9002 Quality System Approval Certificate in 1996.As a designated Corp to develop scientific and technological product for military purpose package, undertakes a great number of task to produce military products and carry out a series of newly trial operations, such as providing important materials for newly launched "Shenzhou" space aircraft and for newly developed carrying rocket. contact as below: SHANGHAI JUNWEN STEEL CO., LTD. Add.: Rm.1906, Baodu Mansion, 1283 North Shanxi Rd., Shanghai, P.R.China 200060 Tel.: +86-21-62666697 Fax: +86-21-62999145 E-mail: jwgt@citiz.net glyn xu