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  • ASTM A53 ERW Steel Pipe
    ASTM A53 ERW Steel Pipe

    ASTM A53 ERW steel pipe. There are ASTM A53 Gr.A ERW steel pipe and ASTM A53 Gr.B ERW steel pipe in Wanlei. ASTM A53 ERW steel pipe is one of main products in Wanlei.Our advantages are Fast...

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  • JIS G3452 SGP Small Diameter Welded Steel Pipe
    JIS G3452 SGP Small Diameter Welded Steel Pipe

    SGP welded steel pipe is made by electric resistance welded process according to JIS G3452 standard. JIS G3452 standard specifies the requirements for carbon steel pipes used for the conveyance of...

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  • ASTM A139 Spiral Welded Steel Pipes
    ASTM A139 Spiral Welded Steel Pipes

    ASTM A139 spiral welded steel pipe is made by electric arc welded process, which has high strength and good welding performance. It is suitable for transportation fluid and gas. We can provide...

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  • LSAW Steel Pipes For Low Pressure Liquid Delivery
    LSAW Steel Pipes For Low Pressure Liquid Delivery

    LSAW steel pipes means that longitudinally submerged arc welded steel pipes,it is covered by multiple execution standards, such as API 5L, GB/T 3091, GB/T 9711, ASTM A252 etc. GB/T 3091 LSAW steel...

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  • ASTM A671 EFW Steel Tube
    ASTM A671 EFW Steel Tube

    ASTM A671 EFW steel tube is steel tube that is used for atmospheric and lower temperature. It is usually used for manufacturing of pipeline in petroleum and chemical industries. ASTM A671 EFW...

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  • JIS G3474 High Strength Welded Steel Tube For Steel Tower
    JIS G3474 High Strength Welded Steel Tube For Steel Tower

    JIS G3474 welded steel tube is mainly used for transmission steel tower, which has high strength and excellent mechanical performance, meeting the requirement of high strength in construction...

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  • EN10219 ERW Structural Round Pipe
    EN10219 ERW Structural Round Pipe

    EN10219 standard covers cold formed welded circular, square and rectangular structural hollow sections. It is suitable for applications in buildings and engineering structure of lighter load....

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  • API 5L Welded Steel Pipe
    API 5L Welded Steel Pipe

    API 5L welded steel pipe is usually used for transporting fluid, such as gases, liquids, etc in petroleum. We can provide high quality API 5L Welded steel pipes to clients and we have rich...

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  • High Quality Welded Steel Pipes
    High Quality Welded Steel Pipes

    Welded steel pipe is one of main export products in Tianjin Wanlei Steel Pipe Co., LTD. We can supply welded steel pipes of various standards, such as ASTM, GB, JIS, GOST, etc. If you are...

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  • GB/T 13793 Welded Steel Pipe
    GB/T 13793 Welded Steel Pipe

    GB/T 13793 welded steel pipe is suitable for structural purposes such as machinery and construction, etc. It can also be used for fluid transportation. We can provide high quality GB/T 13793...

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  • ERW Carbon Steel Pipe
    ERW Carbon Steel Pipe

    ERW steel pipe is made through electric resistance welded technique. ASTM A53 ERW steel pipe, API 5L ERW steel pipe can be supplied by Tianjin Wanlei Steel Pipe Co., LTD. We can provide ERW steel...

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  • JIS G3457 Arc Welded Steel Pipe
    JIS G3457 Arc Welded Steel Pipe

    JIS G3457 arc welded steel pipe is mainly used for pipeline systems. This type of steel pipe is commonly used for low-pressure fluid transportation. We can provide high quality JIS G3457 ARC...

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The welded steel pipe is heated and pressurized by welding to make a process and connection between the tubes to create an atomic bond between the tubes. During the welding process, the workpiece and the solder melt to form a molten region, and the molten pool is cooled and solidified to form a connection between the materials. A welded steel pipe is a steel pipe which is welded and formed by a steel strip or a steel plate and deformed into a circular shape or a square shape, and has a joint on the surface. The blank used for welded steel pipes is steel or strip.

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