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ASTM A350 LF2 CL1 Welding Neck Flanges Shipped to Kazakhstan – ASME B16.5 Class 150 RF
Haihao Group recently completed the production and shipment of ASTM A350 LF2 CL1 welding neck flanges to a valued customer in Kazakhstan. These flanges were manufactured in accordance with ASME B16.5 and designed for low-temperature and sour service applications. The order included multiple size ... -
Haihao Group Exports 6″ Class 150 ASTM A182 F316L Blind Flanges to Kazakhstan
Haihao Group has successfully completed the production and shipment of 6 inch Class 150 ASTM A182 F316L blind pipe flanges to a customer in Kazakhstan. Manufactured in strict accordance with ASME B16.5, these stainless steel blind flanges are designed for sour service environments and supplied w ... -
Haihao Group Delivers ASME B16.5 Carbon Steel Flanges to Malaysia
Haihao Group has successfully completed the shipment of a batch of ASME B16.5 carbon steel flanges to a customer in Malaysia. The order includes weld neck flanges, blind flanges, and socket weld flanges, all manufactured from ASTM SA105 material and designed for Class 150 pressure rating piping ... -
Meet Haihao Group at NEFTEGAZ 2026 – Your Trusted Partner for Pipeline Solutions
NEFTEGAZ 2026 is approaching, and Haihao Group is pleased to invite global oil and gas professionals to meet us in Moscow this March. Together with Ganyeah Group and FNS Pipeline Technology Co., Ltd., we will present a strong and coordinated presence at one of the most influential energy exhibit ...



























