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Haihao Group Delivers MESC-Compliant Line Blinds & Low-Temp Flanges to Russian Upstream Project
Pipeline isolation and connection hardware for Russian upstream oil and gas facilities must clear strict benchmarks for low-temperature toughness, sour service durability and alignment with local MESC and DEP engineering standards. Haihao Group has wrapped up fabrication and shipment of a custom ... -
ASME B16.47A A694 F65 & ASME B16.5 A105N Blind & WN Flanges Shipped to UAE
Large-diameter pipeline isolation for UAE oil and gas infrastructure demands heavy-duty blind flanges with verified low-temperature toughness and full non-destructive examination. Haihao Group has completed fabrication and shipment of a mixed batch of A694 F65 blind flange and A105N weld neck fl ... -
ASME B16.5 A105N & F11 Flanges Shipped to France Industrial Project
Industrial piping infrastructure projects in France require robust, fully traceable flanges built to ASME B16.5 specifications for stable long-term operation. Haihao Group has finished inspection and shipment of a mixed batch of carbon and alloy flanges for our French client, combining ASTM A105 ... -
SA350 LF2 CL1 WN Flanges and Blind Flanges Shipped to Indonesia
Low-temperature piping projects across Indonesia’s oil and gas sector often require mixed sets of standard and drawing-specified flanges to match varied pressure classes and pipe schedules. Haihao Group has completed production and shipment of SA350 LF2 CL1 WN flange assemblies for an Indo ...



























