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  ASME B18.2.2 A193 Gr B16 stud bolt and ASME B18.2.2 A194 Gr 7 nuts ensuring reliable connections

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  Haihao Group provides Singapore customers with high-quality ASME B16.9 ASTM A234 GR.WPB pipe fittings

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  Haihao Group delivers large quantity of EN 10253-2 P265GH pipe fittings to UK customers

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  Seamlessly delivering quality pipe solutions to Singaporean clients

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  Haihao Group ships ASME B16.9 A234 GR WPB material pipe fittings to British customers

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  ASME B16.25 Standard-Butt welding Ends

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  Discovering the differences between ASME B16.47 Series A and Series B flanges

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  Haihao Group tailor-made solutions to meet customer needs

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  Haihao Group expedites the production of pipeline system products for Vietnamese customers

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  Haihao Group assists turkish client with high-quality pipe system products

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  Introducing heat treatment for ASTM A234 GR WPB pipe fittings

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  Unveiling the excellence of 904L alloy steel

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  Haihao Group delivers precision and excellence for UK client’s pipeline needs

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  Haihao Group provides high-quality pipe fittings products to meet the stringent requirements of UAE customers

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  Haihao Group ensures premium quality with X-ray inspection for API 5L steel pipes

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  Explore steel plate types and characteristics with Haihao Group

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  What are the advantages and disadvantages of painting, galvanizing and plastic spraying surface treatment on the elbow surface?

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  Haihao Group warmly welcomes French customers to visit the factory and seek future cooperation

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  Haihao Group brings you the latest raw material market trends

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  Eccentric reducer for connecting pipes of different diameters

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  ASME B16.11 Plugs and Bushings

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  ASME B16.11 Threaded Couplets

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  ASME B16.11 Threaded Bosses

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  ASME B16.11 Threaded Pipe Caps