Qingdao Sangao Metal Structure Co.,Ltd is a professional 200mm to 400mm conical steel poles manufacturer and factory,Website:http://www.china-weldedpipe.com, we have been exporting high quality 200mm to 400mm conical steel poles made in China for years, welcome to contact us.Products Specification:HeightFrom 3 meter to 15 meterSuit forAirport, seaport, roadway, etcShapePolygonal, Conical or ColumniformMaterialNormally Q345B/A572, Minimum Yield Strength ≥ 345 N/mm²Q235B/A36, Minimum Yield Strength ≥ 235 N/mm²As well as Hot rolled coil from ASTM A572 GR65, GR50, SS400Tolerance of the dimensionAccording to client's requirement.Surface treatmentHot dip galvanized Following ASTM A 123, or any other standard by client required.Joint of PolesSlip joint, flanged connectedStandardISO 9001:2008Length of per sectionWithin 14 meter once formingWelding StandardAWS (American Welding Society ) D 1.1Thickness1 mm to 36mmProduction ProcessRaw material test → Cutting →bending →Welding (longitudinal )→Dimension verify →Flange welding →Hole drilling →sample assemble → surface clean→ Galvanization or powder coating ,painting →Recalibration →PackagesPackagesPacking with plastic paper or according to client's request.
