◪ 1.The steel pipes used are all hot-pressed seamless steel pipes, all of which are made of Q235 and conform to GB700-88.
◪2.The joint between the pipe and the pipe and the connection between the pipe and the connector are either butt welds or full circumferential fillet welds.
◪ 3.All butt welds must be cut-through welds. These welds are graded three.
◪ 4.Welds are fillet welds, with solder fillets of not less than 4mm and all exposed seams have sealing plates.
◪ 5.Bolts are galvanized ordinary large hex head bolts, in line with GB5780-86; nuts in line with GB41-86.
◪ 6.Manual welding using E43xx electrode.
◪ 7.The film is made of white PVDF film.
◪ 8.The material of the steel wire rope conforms to the universal wire rope standard "GB/T8918-1996". This project adopts a ramie wire rope with a nominal tensile strength of 1570 and the surface is galvanized.
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