... of the pole tower,the height,the model of the wire,the lighting protection facilities,the horizontal span,field geology,natural ... holeslong boltweld all the plates together and weld carefullyH08A,H08MnA welding wirejoin the pole,flange and cross-arm togetherHJ431welding fluxhot dip ... installationzincwhole quality monitor in the process traffic sign pole with galvanized