• 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

The factory made stainless steel elbows are more popular than the bends produced at site now.



(1) Without the tube as raw materials, saving pipe equipment and tooling costs, and get arbitrarily large diameter and wall thickness of the relatively thin elbow bend.
(2) Blank or developable surface is flat, so simple cutting, easy to ensure accuracy, easy assembly and welding.
(3) Due to the above two reasons, you can shorten the manufacturing cycle, the production cost is greatly reduced. Because it does not require any special equipment, especially for on-site processing of large elbow bend. This technology has been applied for patent.
Factory made steel elbows & bends can be applied in different fields and range. they can be applied in the oil, gas, chemicals, utilities, construction and boiler piping system industries. Stainless steel elbow & bends play an important value and contribution in the industry. it help different users to produce good performance and features.


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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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Tom , Haihao Group

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