Haihao Group is proud to announce the successful shipment of a large batch of spectacle blind flanges to a key customer in Singapore. The order covered a wide range of materials, sizes, and pressure ratings, designed to meet the most demanding industrial environments, including offshore, petroch ...

Haihao Group has successfully completed the delivery of high-pressure RTJ flanges for an international client. This order highlights our strong capability in producing weld neck flanges (WN flanges) and blind flanges that meet stringent project specifications, international standards, and NACE r ...

Haihao Group is proud to announce the successful delivery of a batch of flanges to a valued client in the United Arab Emirates (UAE). This shipment demonstrates our strong manufacturing capability in supplying weld neck flanges (WN), blind flanges (RF), and socket weld flanges in various materia ...

Haihao Group is proud to announce the successful shipment of a batch of ASME B16.5 flanges to a valued customer in Singapore. This order includes a wide range of forged steel flanges manufactured from A105N and A350 LF2 Class 1 materials, ensuring reliable performance in high-pressure piping sys ...

Haihao Group is pleased to announce the successful shipment of a new batch of A105 RF 150# slip on (SO) flanges to a valued customer in Brazil. This order included flanges in multiple dimensions ranging from 2″, 3″, 4″, 6″, 8″, 10″, 12″ to 14″, man ...

Haihao Group has recently completed the supply of RF Weld Neck (WN) flanges for a valued customer in Singapore. The order included high-quality A105N forged carbon steel flanges, produced in full compliance with ASME B16.5 standards. Product Details WN Flange RF, 14″, 150#, STD, Material: ...

Haihao Group, a trusted spectacle blind flange supplier, has successfully delivered a batch of ASME B16.48 spectacle blind flanges to a valued customer in Singapore. The shipment included A350 LF2 CL1 spectacle blind flanges with an outer diameter of 12″ NB 150#, designed and manufactured ...

Haihao Group has successfully delivered a batch of slip on flanges ASME B16.5 CL150 and ASME B16.47 Series A, manufactured from A105 carbon steel. As a trusted slip on flange supplier, we ensure reliable solutions for industrial pipeline projects, offering products that combine durability, preci ...

Haihao Group is proud to announce its participation in the 2025 Gastech Exhibition & Conference, taking place from 9–12 September 2025 at Fiera Milano, Italy. Visitors can find us at Stand C111, where we will join forces with Ganyeah Group and FNS Pipeline Technology Co., Ltd. to present com ...

Haihao Group has recently completed a shipment of ASME B16.5 SS304 blind flanges for one of our valued customers. The order included: DN50 – 150LB SCH40 Blind Flanges DN25 – 150LB SCH40 Blind Flanges These stainless steel blind flanges are manufactured from SS304, offering excellent corrosion ...

Haihao Group, together with Ganyeah Group and FNS (Nanjing) Surface Engineering Service Co., Ltd., will take part in the Oil & Gas Asia (OGA) 2025 exhibition at the Kuala Lumpur Convention Centre, Malaysia, from 2–4 September 2025. Hall 7 | Booth 7601 & 7603 Haihao Group, Ganyeah Group, ...

Haihao Group has successfully completed the shipment of a batch of ASME B16.5 ASTM A182 Gr.F5 weld neck flanges to a valued customer in Belarus. This delivery reflects our commitment to precision manufacturing, compliance with global standards, and meeting the specific requirements of critical i ...