With the more and more extensive application of underwater pipelines, HAIHAO Group has received more orders for underwater projects. Not long ago, HAIHAO Group successfully get an order of Russian Mo underwater pipeline project. Customers need to customize thickened flanges, pipe fittings, elbows and other products in HAIHAO. The first batch of orders exceeded 200 tons.

After the business personnel of Haihao Group got the technical drawings, they quickly contact the factory technician, they gave targeted opinions and arranged the production at the fastest speed. Since many products required by the customer are non-standard products, HAIHAO communicated with customers of  for many times during the production process. After the products were manufactured according to the needs, we carried out field measurement and synchronized the data to the customer. The customer highly recognized the products.

Large size weld neck flanges

As a supplier with more than 40 years of production experience, HAIHAO Group has the ability to produce products with various parameters, such as high temperature resistance, corrosion resistance, enlargement and thickening,etc. No matter what size of products you need , we can quickly issue technical solutions and arrange production. HAIHAO welcomes you to consult relevant products at any time. We have the ability to meet your various needs.