1.Standard:EN1092-1, ANSI, ASME, ASTM, JIS, DIN, UNI, GOST, BS4504, AS2129, etc. 2.Customized:Standard, also non-standard and special flanges according to drawings 3.Type: PL , BL, SO, Threaded, WN, Loose, Ring, etc 4.Size:DN15-DN2000 5.Pressure:PN6/10/16/25/40/63 6.Material:Carbon steel, S235JR, P245GH, P250GH, A105, SS400, SF440A, ST37-2, C22.8, etc 7.Surface treatment: Anti-rust oil,Black paint,Yellow paint, Hot dip galvanized,Elec-galvanized, Cold galvanized, etc. 8.Technology:Forging 9.Process:Complete production process , Complete Traceability 10.Surface finish:Stock finish, two concentric lines, three concentric lines, smooth finish， etc. 11.Packing :Plywood pallet, case or as per customer's requirements. 12.Certificate:ISO,TUV/PED,DNV,BV,VD TUV, etc. 13.Inspection:Workshop self-inspection, Laboratory self-inspection, Third-party inspection 14.Sample:Available 15.Trade Term:FOB,CIF,CFR,EXW, etc.