Haihao Group has successfully completed the production and delivery of a batch of octagonal ring joint gasket products designed for high-pressure flange connections. These gaskets are manufactured with precision and strict quality control to ensure reliable sealing performance in demanding indus ...

Haihao Group has successfully completed the production and delivery of a batch of weld neck flanges and blind flanges for an international pipeline project. These flange products were manufactured in strict compliance with global standards and tailored to meet diverse operational requirements. O ...

Haihao Group has successfully completed the production and shipment of a batch of stainless steel weld neck flange to Russia, designed for highly corrosive environments and strict international project requirements. These flanges are manufactured using 6-molybdenum stainless steel (ASTM A182 F44 ...

Haihao Group has successfully completed the production and shipment of a high-specification blind flange to UAE, designed for demanding DPE engineering projects. This large-diameter flange is engineered for reliable pipeline isolation under high pressure and low-temperature conditions. Project O ...

Haihao Group has successfully completed the production and shipment of a batch of spectacle blind flanges to UK, designed for high-pressure pipeline systems. This order includes RTJ (Ring Type Joint) figure-8 blinds in Class 1500 and Class 2500, meeting strict international standards for reliabi ...

Haihao Group has successfully completed the production and delivery of a batch of ASTM A350 LF2 flanges to Russia, supporting a pipeline project operating under low-temperature conditions. Project Overview: ASTM A350 LF2 Flanges to Russia The order includes a wide range of ASTM A350 LF2 flanges ...

Haihao Group has successfully completed the production and shipment of a comprehensive batch of ASTM A105 flanges for Brazil client, further strengthening our presence in the South American market. Project Overview of ASTM A105 Flanges The delivered ASTM A105 flanges for Brazil client include bl ...

Haihao Group has successfully completed the delivery of a SORF flange for Malaysia client, demonstrating our strong capability in supplying large-diameter carbon steel flanges for international projects. Project Overview of SORF Flange for Malaysia Client The shipped SORF flange for Malaysia cli ...

Haihao Group has successfully completed the production and shipment of a batch of flange products for an Iraq client, demonstrating our strong manufacturing capability and strict quality control in international projects. This order includes a variety of industrial flanges designed to meet diffe ...

Haihao Group has recently completed the production and shipment of a batch of WN flange products to a customer in Russia. The order includes 2-inch Class 150 weld neck flanges, manufactured in ASTM A182 F304L stainless steel and produced in full compliance with ASME B16.5 standards. Product Deta ...

Haihao Group recently completed the production and shipment of a batch of spectacle blind flanges and spade & spacer sets for a customer in Indonesia. The products are manufactured in accordance with ASME B16.48 and meet the technical requirements of NORSOK L-001, ensuring high reliability f ...

Haihao Group recently completed the production and shipment of a reducing threaded flange for a customer in Indonesia. The product was manufactured from ASTM A182 F316L stainless steel and produced according to ASME B16.5 standards to ensure reliable performance in industrial piping systems. The ...