Specialized manufacturer of high-pressure pipeline components
About Our Company
After years of development, it has become a professional manufacturer of pressure pipeline components integrating design, manufacturing, and testing, with advanced technology, complete equipment, and leading position in the industry.
Hebei Haihao Group Huadian High Voltage Pipe Fittings Co., Ltd. has fixed assets of 250 million yuan, covering an area of 200,000 square meters and a building area of 120,000 square meters. It has strong technical strength, with 40 engineering and technical personnel, including 3 senior engineers, 10 engineers and 9 assistant engineers.
Our advantages
Why Choose Us
Hebei Haihao Group Huadian High Voltage Pipe Fittings Co., Ltd. sells and serves products for various key national projects.
High Quality
We take pride in the craftsmanship of our products and ensure that each one meets our strict standards for quality.
Advanced Equipment
Equipment based on the latest technological developments has higher efficiency, better performance and stronger reliability.
Professional Team
It has strong technical strength, with 40 engineering and technical personnel, including 3 senior engineers, 10 engineers and 9 assistant engineers.
Customized Services
We understand that each customer has unique manufacturing needs. That’s why we offer customization options to cater to your specific requirements.
Competitive Price
We offering a higher-quality product or service at an equivalent price. As a result we have a growing and loyal customer base.
Fast Delivery
Arrangement of shipment in time, no breach of contract, tracking the progress of cargo transportation throughout the process.
Popular Products
Our Products
We work directly for our clients and put client’s interests first. Innovation Guides Us As Always
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![Steel Pipe Cap]( "Steel Pipe Cap")
Steel Pipe Cap1.Brand and origin:HAIHAO,made in China,strictly conforming to ASME B16.9 GOST 17379 DIN 2617.
2.Surface treatment:bare surface,painting,anti-rust... -
![ASME Elbow]( "ASME Elbow")
ASME ElbowHAIHAO brand provides butt-welding elbows conforming to ASME B16.9, used for changing the flow direction in industrial piping systems. The product size...
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![Steel Pipe Elbow]( "Steel Pipe Elbow")
Steel Pipe ElbowBrand Name：HAIHAO
Habitat：CHINA
Execution Standard：ASME B16.9、GOST 17375、GOST 30753、DIN2605 -
![ASME B16 5 Weld Neck Flange]( "ASME B16 5 Weld Neck Flange")
ASME B16 5 Weld Neck FlangeComplies with ASME B16.5, forged weld neck flange
Core industrial pipeline connector, butt-welding type, high strength & excellent sealing... -
![Steel Slip On Flange]( "Steel Slip On Flange")
Steel Slip On FlangeCompany: HAIHAO
Material: Forged ASTM A105
Specification: DN25, Class 150, RF facing -
![ASME Blind Flange]( "ASME Blind Flange")
ASME Blind FlangeStandard: ASME B16.5, material: carbon steel, stainless steel, alloy steel, connection type: bolted connection.
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![Eccentric Weld Reducer]( "Eccentric Weld Reducer")
Eccentric Weld ReducerStructure Type: Eccentric design.
Wall Thickness Classes: SCH10–SCH160, XXS, GOST, DIN, etc. -
![Steel Concentric Reducer]( "Steel Concentric Reducer")
Steel Concentric ReducerStructure: Butt-Welding connection, concentric design.
Dimensions: Custom sizes availabl.
GET IN TOUCH
Contact Details
If you are interested in working with us then please drop us a line, we would love to hear from you.
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News Center
We promise to find you the right equipment
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![Managing ASME, GOST, And DIN Tee Orders]()
Aug31, 2026Managing ASME, GOST, And DIN Tee OrdersA tee marked DN100 does not tell the whole story when several standards are involved. ASME, GOST, and DIN use different dimensional systems, so Haihao separa...
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![Tee Order Checks Before Production]()
Aug31, 2026Tee Order Checks Before ProductionA tee order does not go straight to forming equipment when it reaches the workshop. At Haihao, the first step is to check the material grade, outside diamete...
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![Tee Inspection And Packing Before Shipment]()
Aug31, 2026Tee Inspection And Packing Before ShipmentFinishing production is only part of a tee order. Before shipment, Haihao checks the completed fittings against the order, keeps batches identifiable, and ch...
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![Choosing Surface Treatment For Steel Tees]()
Aug31, 2026Choosing Surface Treatment For Steel TeesA tee does not need the same finish simply because the outside dimensions are the same. Carbon steel and stainless steel behave differently during storage, t...
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