• 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

This week, the engineer from notify body of EU visited our company for annual verification ,he audited our products manufacturing and quality management system .  CE Certification Pressure Equipment Directive (PED) is the quality requirement for our pipe fittings and flanges to europe market.  We work together with the qualified NB to improve our quality level last years.



As one of the earliest PED certificated pipe fittings and flanges manufacturer in China ,  Haihao group supply products to EU for long time . Auditor from NB communicated with us about the situation of our piping products in application and exporting . Haihao group steel pipe fittings, and steel flanges got a highly satisfactory feedback from clients , the products are used widely in the oil ,gas and power plant projects more and more .  we keep in touch with our customer and end user about the working conditions of the piping products which can provide our factory latest news about our products .



Haihao piping system products are supplied to Spain,Germany,Italy,Denmark,France etc . Our products accomplish to EN 10253-1, EN 10253-2, EN 10253-3, EN 10253-4 standard, includes the typeA, type B pipe fittings, and the flanges of EN1092 standard , Any needs for the steel pipe fittings and flanges for Europe market , you can contact us in any time.



Latest Products

18 2016 03
27 2015 12
26 2015 12
26 2015 12

Our Markets

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.
contact us


Serving the world flowing! Aiming to be the best in the field! Improving level of “Made in China”!”

Tom , Haihao Group

Our References