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  Protecting your flanges: understanding the types of coating treatments

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  Flanges in FPSO LNG and Ship Piping Systems: Material and Processing Technology Explained

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  EN 1092-1 flanges from Haihao Group: unmatched performance for industrial applications

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  2023 Moscow NEFTEGAZ booth 74CIPUE-15, Haihao Group welcomes you

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  Enhancing oil production efficiency with orifice flanges A182 F304 ANSI B16.36 from Haihao Group

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  API and ANSI/ASME flanges: Haihao Group’s high-quality solutions for demanding applications

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  What’s the difference between ANSI/ ASME flanges and API flanges?

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  Haihao Group called attention to the safety risks of ship pipeline systems

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  ASTM A240 316/316L Paddle Spacer used in Arctic LNG2 Project

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  ASTM A350 Gr.LF2 Cl.1 ASME B16.5 C1 weld neck flange applied to Arctic LNG2 project

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  Quality inspection for ASTM A182 316/316L, ASTM A350 Gr.LF2 weld neck flanegs and blind flanges

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  ASTM A182 316/316L, ASTM A350 Gr.LF2 weld neck flanges and blind flanges ready for delivery

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  Saudi customer added AWWA C207 A105 slip on flange orders

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  Characteristics of epoxy powder coatings

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  Reasons for corrosion of petrochemical pipeline

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  Bolt type for flange

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  Types of blind flange

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  Types of flange gaskets

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  Specific technical requirements for wind power flange

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  Haihao provides one-stop service for customers

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  Celebrate the 40th anniversary of Haihao Group!

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  Flange shipment ordered by Russian customers

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  Difficulties in offshore wind power operation and maintenance

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  Haihao Wind Power Flange Assists Kubuqi Base Project