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Haihao Group Delivers High-Performance WN Flanges and Blind Flanges for Industrial Pipeline Systems
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 ... -
Stainless Steel Weld Neck Flange to Russia | ASTM A182 F44 (6 Moly) CL300 RF by Haihao Group
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 ... -
Blind Flange to UAE | 42″ Class 600 ASTM A694 F65 RF Flange by Haihao Group
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 ... -
Spectacle Blind Flanges to UK | RTJ Figure-8 Blinds Class 1500 & 2500 by Haihao Group
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 ...



























