Haihao Group has been engaged in the field of pipeline system supply for more than 40 years. Our pipeline system products, flanges, elbows, tees, steel pipes and other products are widely used in pipeline systems around the world. In order to bring custome ...

Haihao Group’s Italian customer placed an order for seamless steel pipes of various materials, one of which is basic oxygen converter steel ASTM A106 Grade B. This exceptional material selection reflects our commitment to delivering best-in-class qua ...

In steel production, the melting method plays a crucial role in the quality and properties of the final steel product. In the order from the Iranian customer, the customer requested that the material of the seamless steel pipe be smelted using an electric ...

Haihao Group, an expert in the field of pipeline systems, not only offers a variety of large-scale pipeline products such as flanges, elbows, and tees but also commits to producing high-quality bolts and nuts for pipeline systems. We understand the specifi ...

Haihao Group is delighted to announce the successful provision of an outstanding range of pipeline system products to our esteemed Japanese client. This recent order encompasses various specifications and models, showcasing Haihao Group’s manufacturi ...

Recently, the 2023 National Petroleum and Chemical Technology Innovation Conference was held in Wuhan, where the China Petroleum and Chemical Industry Federation presented the 2023 Science and Technology Awards. PetroChina garnered an impressive 82 technol ...

Haihao Group maintains a strong collaborative relationship with COSCO Shipping Heavy Industry in maritime engineering. Currently holding certifications from major classification societies such as ABS, DNV, BV, RINA, our pipeline system products find extens ...

For years, Haihao Group has been the mainstay in the forging field and is committed to mastering advanced forging technology. Not long ago, a forging project in Russia in which we collaborated with China National Petroleum Corporation was underway. We take ...

As Serbia continues to be a crucial partner in the Belt and Road Initiative, trade relations with China have significantly intensified in recent years. In line with this trend and driven by supportive policies, Haihao Group has actively engaged in numerous ...

The vast expanse of the ocean floor holds abundant resources such as oil, gas, and minerals. Extracting these valuable commodities requires a complex process of underwater development, followed by long-distance transportation to the mainland. Throughout of ...

In the face of recent heavy snowfall in Northern China, Haihao Group reaffirms its commitment to delivering top-quality products to customers. The company has taken proactive steps to ensure the safety and integrity of shipments, particularly those contain ...

According to the latest monitoring data from the National Bureau of Statistics on 50 crucial production materials in 9 major categories across the country’s circulation sector, prices in the market have shown a mixed trend in late November. In compar ...

Large ring forgings find extensive applications across diverse industries, and understanding their specific uses is paramount. In this article, we delve into the versatile applications of large ring forgings and how Haihao Group stands out in mastering adv ...

In collaboration with PetroChina, Haihao Group is currently spearheading the production of large stainless steel forgings, encompassing various grades such as 304L, 316L, and 321. We are proud to showcase our expertise in the heat treatment process, ensuri ...

Whether employing macroscopic structure examination, microscopic analysis, or performance and composition determination, these methods are inherently destructive. For certain critical and large-scale forgings, destructive methods fall short of meeting the ...

In a recent collaboration between Haihao Group and PetroChina, extensive material testing was conducted on large forgings to guarantee the highest quality standards. Haihao Group prepared raw material test blocks according to customer needs and conducted c ...

In yet another testament to its commitment to excellence, Haihao Group proudly announces the successful dispatch of a shipment to our esteemed client in the United Arab Emirates. This delivery comprises a range of top-tier products designed to meet the hig ...

At the beginning of this year, a distinguished client from Turkey placed a substantial order with Haihao Group, encompassing a variety of pipe fittings such as steel pipes, elbows, tees, concentric and eccentric reducers, and flange supports. The total ord ...

Haihao Group is delighted to announce the initiation of production for a recently received order from our esteemed client in Indonesia. This comprehensive order includes a variety of top-quality products tailored to meet the specific needs of our client ...

The nuclear industry stands as one of the largest consumers of stainless steel fittings, and its demands are arguably the most rigorous compared to other sectors. This stringency is primarily due to the higher risk factors associated with nuclear activitie ...