Butt weld pipe fitting
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".
Forged steel pipe fitting
Forged steel pipe fittings are created using a process called forging. The process of forging heats a piece of carbon steel that is placed between an upper and lower die, which molds the heated piece of carbon steel into the desired shape.
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.
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.
Pre-Fabrications
We are professional flange & pipe fittings manufacturer, and own advanced machines to produce high quality product in standard,but for some customers , they need Non-standard product,we have ability to meet your requirement.
Coated and insulated piping
Haihao offers a complete range of thermal coating solutions inalliance with internatinal coating companies. These solutions protect and insulate pipe used in offshore projects in order to guarantee flow assurance.