7 types of construction steel
Construction steel can usually be divided into steel for steel structure and steel for reinforced concrete structure.
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Construction steel can usually be divided into steel for steel structure and steel for reinforced concrete structure.
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Often said galvanized pipe, the use of galvanized pipe now gas, heating with the kind of iron pipe is also galvanized pipe.
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Spiral welded pipe: The low carbon carbon structural steel or low alloy structural steel strip is rolled into a tube blank according to a certain helix Angle (c···
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Big mouth straight seam welded pipe main production process description.
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