Height5Mto12MonepieceApplicationRoad,street,stadium,Airport,seaport,ETCShapeOctagonal,Roundconical,polygonal,squareMaterialofsteel(Baosteel)Q235Yieldstrength:235MpaQ345Yieldstrength:345MpaSS400,SS490 or GR65Toleranceofdimension+-2%weldingpenetrationMin70%twist degrees< 4 degreesthickness of steel1to30MMfinishinghotdipgalvanizedinsideandoutside(10yearswarranty)GalvanizationcompanyNingboYongfeng(bestqualityinChina)productionprocedureRawmaterialtest→Cutting →bending→Welidng(Submerged arc welding)
→Dimensionverify→Flangewelding→Holedrilling→Calibration→
Deburr→Galvanization and powdercoating →Recalibration→
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