Zhejiang Dewei Stainless Steel Pipe Co., Ltd. is a professional manufacturer of industrial stainless steel pipes & tubes founded in 1986, locating at Jiaxing, Zhejiang province P.R.China, at a distance of 120 KM away from PVG (Shanghai Pudong International Airport), 88KM away from SHA (Shanghai Hongqiao Airport), 100 KM away from HIA (Hangzhou International Airport), 74 KM away from Suzhou City. Dewei specializes in manufacturing industrial welded stainless steel pipes & fitting pipes. With registered capital 50.3 million RMB and total investment 250 million RMB, covering an area of 70,000 square meters and 100,000 square meters production areas. The annual production capacity of welded steel pipes reaches 20, 000 tons. The products of Dewei do not only comply with domestic quality-related certificates such as GB, HG and SH, they also follow international standards such as ISO 9001, DIN, ASTM, EN, and JIS, implementing API Spec Q1 quality management system, obtained API Spec 5LC, ASME certification and PED certification. Dewei’s products can be divided into single straight seam welded pipes(Φ6-Φ813, wall thickness from 0.5mm to 16mm), double straight seam welded pipes(Φ630-Φ1219, wall thickness from 2mm to 50mm), and circular seam welded pipes(aboveΦ630,wall thickness from 2mm to50mm). The steel grades are: Ni-Alloys ((N08904, N06600, N08825 etc), Duplex (S32750, S31803, S32205 etc ), Austenite(310S, 309S, 316L, 321, 304L, 304 etc ), Ferrite (430, 409L etc ).