• Steel Flanges

    A flange is a method of connecting pipes, valves, pumps and other equipment to form a piping system, provides easy access for cleaning, inspection or modification. read more

  • Pipe Fittings

    The ends of all buttweld fittings are bevelled.The shape of the bevel depending upon the actual wall thickness.This bevelled ends are needed to be able to make a "Butt weld". read more

  • Steel Pipes

    Pipe is a hollow tube with round cross section for the conveyance of products. The products include fluids, gas, pellets, powders and more. read more

Oh hello everybody! Recenty we have received many spam comments and we have marked those spam. We know that you want make great comments and share something interesting with us. But please comment without any irrelevant words. Now you can add your favourite links or you can apply for the friendly link to us. We hope we can make great business:)

We are a professional pipe fittings & flanges manufacture in Hebei, China. We owned a big factory and many highly skilled workers and engineers. If you want to exchange the website link with us, you’d better be chemical or mechanical industry. Only if you are the relevant pipe fittings industry we will think about the friendly links of you.

Otherwise, you maybe were banned to posts. Your accounts will probably be deleted. So just be nice and sincere please. If it’s possible, we will go back to your website and give you more attention and support 🙂

If you have any questions or inquiries about our products or service, please comment or contact us page here.


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haihao has been a professional supplier of pipes,fittings and flanges, serving the world industry piping since 1982.
oil and gas industry

as a leading manufacturer,stockist and supplier, our knowledgeable and experienced technical team can understand well what you need . help you find the best solution for your regular and specific requirement.
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Serving the world flowing! Aiming to be the best in the field! Improving level of “Made in China”!”

Tom , Haihao Group

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