Our technical support can begin with the design of the and continue through to the after-sales quality feedback of the final product.Through continuous improvement, innovation and development, high-quality products, reasonable prices, and considerate services have made our products the first brand for welded steel pipe users! We are looking forward to receiving your enquiries soon. Our goal is to pursue excellent quality and create a world-famous brand. We adhere to the strategic policy of innovation, change, competition and win-win, and form a good atmosphere of consistent philosophy, harmony and tolerance by creating an excellent new culture. We are always loyal to customers, companies, and colleagues, because we believe that integrity is the foundation of unity and unity is the foundation of harmony. We have a proven track record of delivering high-quality products and excellent customer service. Our products are designed to meet the needs of customers in a variety of markets and industries.
  • ASTM 106 Seamless Steel Pipe

    ASTM 106 Seamless Steel Pipe

    Standard: GB/T3087, GB/T8162, GB/T8163, API 5L, API 5CT, ASTM A106, EN10216. Grade: 20#, 16Mn, 37Mn5, 42 Cr Mo, Grade B, X60, X42, X70.... Thickness: 2.0mm-30.0mm. Section Shape: Circular.
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  • API 5L Seamless Steel Pipe

    API 5L Seamless Steel Pipe

    Standard: GB/T3087, GB/T8162, GB/T8163, API 5L, API 5CT, ASTM A106, EN10216. Grade: 20#, 16Mn, 37Mn5, 42 CrMo, Grade B, X60, X42, X70.... Thickness: 2.0mm-30.0mm. Section Shape: Circular.
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  • SCH40 SCH80 Seamless Steel Pipe

    SCH40 SCH80 Seamless Steel Pipe

    Standard: GB/T3087, GB/T8162, GB/T8163, API 5L, API 5CT, ASTM A106, EN10216. Grade: 20#, 16Mn, 37Mn5, 42 Cr Mo, Grade B, X60, X42, X70.... Thickness: 2.0mm-30.0mm. Section Shape: Circular.
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  • ASTM A53 Seamless Steel Pipe

    ASTM A53 Seamless Steel Pipe

    Standard: GB/T3087, GB/T8162, GB/T8163, API 5L, API 5CT, ASTM A106, EN10216. Grade: 20#, 16Mn, 37Mn5, 42 CrMo, Grade B, X60, X42, X70.... Thickness: 2.0mm-30.0mm. Section Shape: Circular.
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  • ASTM 795 Seamless Steel Pipe

    ASTM 795 Seamless Steel Pipe

    Standard: GB/T3087, GB/T8162, GB/T8163, API 5L, API 5CT, ASTM A106, EN10216. Grade: 20#, 16Mn, 37Mn5, 42 Cr Mo, Grade B, X60, X42, X70.... Thickness: 2.0mm-30.0mm. Section Shape: Circular.
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Marquita Paddock star star star star star
Thank you for your warm service, every time we have doubts, your customer service is willing to patiently explain the details to us.
Mary Allis star star star star star
We were surprised that the goods were received quickly. After all, the order was placed late, but the seller's efficiency was very high.
Katherine Cole star star star star star
The company strictly supervises the production process, so we are very reassuring about them. The final product was well received.
Floyd Gonzales star star star star star
In this cooperation, our teamwork is very tacit. They don't hesitate to lend a hand when we need them, so we've become friends too.
Kenneth Gilbert star star star star star
Your people work hard and are able to think for themselves and have excellent understanding.
Jose Schwartz star star star star star
We are a small company that has just started, but we get the company leader's attention and gave us a lot of help. Hope we can make progress together!
Seamless Steel Pipe, Welded Steel Pipe - 4D STEEL LIMITED...

WebOur range of standard and special grade welded and seamless industrial steel pipes are distributed to a wide range of different industries including: Oil & Gas Petrochemical Alternative Energy...

Welded steel pipe | Abrasion resistant pipe...

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding. SAW pipes JCOE Pipe...

Welded steel pipe | Abrasion resistant pipe...

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding. SAW pipes JCOE Pipe UOE Pipe DSAW...

Welded steel pipe - Carbon steel...

Welded steel pipe. Welded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after crimping and welding. Welded steel pipe has a simple production process, high...

Welded steel pipe - Carbon steel...

WebWelded steel pipe, also known as welded pipe, is a steel pipe made of steel plate or strip steel after crimping and welding. Welded steel pipe has a simple production process,...

Home | National Welding Corp....

Home | National Welding Corp....

We offer our customers not only the best quality high-tech , but also efficient, reliable and timely services. We're professional welded steel pipe manufacturers and suppliers in China, providing the best products and service for your brands. We warmly welcome you to buy high-quality welded steel pipe made in China here from our factory. For more company information, contact us now.

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