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Electric High Frequency Welded Square tubes are commonly used in constructions ,machinery marking, power stations, air port etc.
Standards: GB/T6728-2008, GB/T3094-2008, ASTM A 500, JIS G3466 Cold formed
Size: 30*30mm-500*400mm Wt: 1.8-25mm
Length: 2.81m, 6m, 11.25m, 12m or fixed as required
MQO: 10MT
Surface: with or without anti-rust paints
Packing: in bundles with steel strips or in bulk