• Galvanized bolts, nuts, and non-asbestos gaskets ready for delivery2024-12-06
• Hot-dip galvanized 45-degree long radius elbows delivered to domestic customer2024-12-05
• Do you know how to prevent and control intergranular corrosion?2024-12-04
• ASME B16.9 A234 WPB 45-degree long radius elbows for domestic customer2024-12-02
• Haihao Group supplies high-quality ASME B36.10M A-335 Gr.P11 pipe nipples to Singapore2024-11-29
• ASME B16.9 ASTM A815 UNS S32750 seamless 90 degree elbows delivered to Singapore2024-11-28
• High-performance ASME B16.9 A815 Gr.S31803 seamless concentric reducers delivered to UAE2024-11-26
• What is MSS SP-97 threaded outlet?2024-11-25
• The significance of overlay welding in modern industry2024-11-22
• Our steel pipes are shipped to the Middle East to support LNG projects2024-11-21
• Differences between ERW pipes and seamless pipes2024-11-20
• Introduction to normalizing heat treatment2024-11-19
• Factors leading to weld porosity: Metallurgical and process influences2024-11-15
• What is weld porosity and its hazards？2024-11-14
• Large-size welded pipes in A516 GR.70 ready for shipment to Italy2024-11-12
• Shipment of high-quality carbon steel fittings, flanges, and pipes to Brazil2024-11-11
• How to reduce the phosphorus and sulfur content in pipe fittings2024-11-07
• What is NACE MR0175?2024-11-06
• Understanding solution treatment and its advantages in pipe fittings2024-11-04
• A182 F347H forged lateral tee manufactured by Haihao Group: Exceptional Corrosion Resistance for Extreme Environments2024-10-31