Technical information

Based on our experienced and professional technical team. We can offer technical information and data about our piping products , such as the material information, standard data,products performance of our steel pipes, pipe fittings,flanges or other relevant piping products.

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Customized finish

In haihao, we can do the following works to the piping products as clients’ request: Threading

Galvanizing

Coating

Lining

Packing

Marking

Beveling

Blasting

Pickling

Cutting

Welding

Machining

Barred Fittings

Our experienced engineers,workers and advanced equipments can satisfy your any special request for the steel pipes, pipe fittings and flanges .