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  • 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

Welcome to Steel Blind Flange,Steel Blank Flange,Steel Flange Cap

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Blind Flange


Slip On Flange,SO Flange

Slip On Flange,SO Flange

Weld Neck Flange,Butt Weld Flnage

Stainlses Steel Weld Neck FlangeDefinition and Details o ...

Weld Neck Flange,Butt ...

Blind Flange,Blank Flange

Stainless Steel Blind FlangeBlind Flange Definition and ...

Blind Flange,Blank Flange

Pipe End Cap-Butt Weld Pipe Fittings

carbon steel pipe capButtweld fitting:Butt Weld CAPBasic ...

Pipe End Cap-Butt Weld ...


Blind Flange


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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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Our VISION:

“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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