Product News

  • Black ERW steel pipe

    Black ERW steel pipe

    Black ERW steel pipe ERW steel pipe with bevelled ends & plastic caps Hunan Great Steel Pipe Co.,Ltd can provide you with Electric Resistance Welded (ERW) Pipe suitable for your project needs. ERW pipe cold formed from a ribbon of steel pulled through a series of rollers and formed into a tub...
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  • API 5L

    API 5L

    Generally speaking, API 5L refers to API 5L line pipe,which is out of the ground the oil, gas, water, transported by pipeline to pipe oil and gas industry companies. according to the manufacture process and the tube bloom used different shapes, api 5l can be divided into api 5l seamless steel pip...
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  • Do you Know the History of Scaffolding ?

    Do you Know the History of Scaffolding ?

    Antiquity Sockets in the walls around the paleolithic cave paintings at Lascaux, suggest that a scaffold system was used for painting the ceiling, over 17,000 years ago. The Berlin Foundry Cup depicts scaffolding in ancient Greece (early 5th century BC). Egyptians, Nubians and Chinese are also re...
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  • Difference between black steel pipe and carbon steel pipe

    Difference between black steel pipe and carbon steel pipe

    In general, black steel pipe and carbon steel pipe have about the same procedures for welding. That is if you are talking about general welding and not for some specific application like very cold temperatures. Black steel pipe is not really a specification but rather a generic term used primaril...
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  • Cold drawn precision pipe welding quality problems and solutions

    Cold drawn precision pipe welding quality problems and solutions

    1. Cold drawn precision tubes Weld Butt Weld occur during welding, the main welding jig is not enough stroke and docking jig when two conditions caused by too fast. a, butt welding jig stroke enough. Cold drawn precision pipe connections before and after docking with the milling cutter mark trial...
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  • Black ASTM A106 seamless pipe

    Black ASTM A106 seamless pipe

    Black ASTM A106 seamless pipe Hnssd steel pipe provide the Seamless steel pipe can be used for transmitting a large number of fluid liquid transportation oil and gas pipeline ,construction or water system we offer the  Seamless steel pipeis a kind of hollow cross-section with no surrounding joint...
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