General Flanges
EN
Haihao Group was founded in 1982, the leading manufacturer and supplier of Steel Pipes, Flanges, Pipe Fittings, Valves, Piping Sensors and Piping Equipment Spares with over 10 subsidiaries in China.
Haihao offers ONE-STOP Piping Solution with ISO, API 6A, CE(PED), ABS, DNV, BV and CCS certified.
Haihao is located in the biggest steel product manufacturing center of the world with 44 years of manufacturing&engineering experience in piping. Haihao will be your strong supply chain supporting to achieve accurate supply along with cooperating with over 2000 steel product manufacturers in the surrounding area.
Founded
Employees
Total assets in CNY
Floor space
Products
Haihao manufactures and supplies all kinds of Steel Pipes, Flanges, Pipe Fittings, Valves, Piping Sensors and Piping Equipment Spares with different international standards.
Forging and hammering, forging and pressing, intermediate frequency pushing, machining, cold forming, hot extrusion, heat treatment and other superb technologies.
Refineries
Petrochemical Plants
Offshore & Subsea Pipelines
We deliver fully compliant, high-reliability piping packages for municipal water supply networks, long-distance transmission lifelines, pumping stations, and reservoir connections.
We provide heavy-duty, wear-resistant, and high-pressure piping solutions (including CRA clad pipes, specialized tees, and heavy-duty flanges) specifically engineered for slurry transportation, mine dewatering, and tailings management under harsh mining environments.
Projects
