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Haihao Group Supplies GOST 33259 ASTM 321 Weld Neck Flange Assembly to Belarus
Haihao Group has successfully completed the production and shipment of a GOST 33259 flange assembly for a customer in Belarus. The order includes a complete flange connection package consisting of an ASTM 321 weld neck flange, spiral wound gasket, stainless steel stud bolts, nuts, and washers, p ... -
EN 1092-1 Type 11 WN Flanges and Blind Flanges Delivered to Montenegro by Haihao Group
Haihao Group has successfully completed the production and shipment of a batch of EN 1092-1 Type 11 flanges and blind flanges for a customer in Montenegro. Manufactured from RSt 37.2 carbon steel, the products comply with EN 1092-1 Type 11 Form B requirements and are supplied with anti-rust oil ... -
24″ ASME B16.5 A694 F65 RTJ Blind Flange Shipped to Indonesia with Low-Temperature Qualification
Haihao Group has completed the production and shipment of a 24-inch RTJ blind flange for an Indonesian pipeline project. Manufactured from ASTM A694 F65 material in accordance with ASME B16.5, the flange underwent heat treatment and full mechanical property verification to satisfy the project ... -
Haihao Group Ships ASTM B564 UNS N06625 Flanges to Singapore for Corrosion-Resistant Pipeline Projects
Haihao Group has successfully completed the production and shipment of a comprehensive batch of ASTM B564 UNS N06625 flanges for a long-term customer in Singapore. The order includes socket weld flanges, welding neck flanges, and blind flanges manufactured in strict accordance with ASME B16.5, c ...



























