Weifang shengjiang Import&Export Co., Ltd. was founded in 2003, is the branch company for Shengjiang Engineering Co., Ltd.Which supply one station package service for the construction, oil and Gas industry project.We could supply various kinds of standard and non-standard flanges a year in with ASMEã€APIã€BSã€JISã€DINã€UNIã€GOST and etc.Our products have been widely used in the oil refinery, chemical plant, nuclear power, shipbuilding, paper, food and other industries since we attained the work approval certificates from:LRã€BVã€DNVã€ABSã€GLã€ISO9001 and TüV.There are many professional engineers with rich experience in our company to assure the high standard working process and quality.We have equipped water-tight equipments for the purchasing of raw material, the manufacturing, machining and testing of the products.We are noe the leading manufacture in our domestic industry.We insist on quality first with competitive price and good service to win the market, and we will keep on satisfying our customers with our best products, working efficiency, and service.Type of Flange:WELD NECK, SLIP-ON, BLIND, SOCKET, WELD, ORIFICE FLANGE, SWIVEL RING FLANGE, ANCHOR FLANGE, SPADE&SPACER, SPECTACLE BLINDS ETC.Materials:.Carbon Steel:ASTM/ASME SA105, A350 LF-2, LF-3, A694, SA516-70, A36.Chrome Alloy:A182-F1, F5, F6, F9, F91, F11, F12, F22..Stainless Steel: A182 F-304, Dual Grade 304L, 316L, 316, 309, 310, 317L, 321, 347, 904L..Alloy 20, H grades.Aliuminum:3003, 6061.Hastalloy:B-2, C-276, G.X, C-22.Inconel-600, 601, 625, 718.Incolloy-800, 825, 800H, 800HT.Monel-400.Copper-90/10(C70600), 70/30(C71500).Duplex-F51/2205, F53/2507.Titanium-Gr2, Gr12