News
- Haihao Group welcomes you to visit us at ADIPEC in Abu Dhabi2024-10-28
- Introduction to the 1″-150 RF blind flange with handle (A350 Gr. LF2) for Russian client2024-10-25
- What is ASME B16.47 Series A blind flange?2024-10-23
- Structure types of spiral wound gaskets and applicable flange sealing faces2024-10-22
- Evolution, standards and applications of spiral wound gaskets2024-10-21
- What is ASME B16.20 spiral wound gasket?2024-10-18
- Introduction of high quality austenitic stainless steel 254SMO2024-10-17
- Haihao Group produces hot-dip galvanized S235JR swivel flange for Danish client2024-10-16
- What is IX seal ring for compact flanges？2024-10-15
- ISO 27509 ASTM A694 GR. F65 Compact WN Flange : Haihao Group’s Expertise in supplying high-performance flanges2024-10-14
- Factors influencing tube sheet corrosion2024-10-11
- Welding and expansion method for connecting heat exchanger tube sheets and tubes2024-10-10
- Welding connection between heat exchanger tube sheets and tubes2024-10-09
- Haihao Group’s successful participation in Tube China 20242024-10-01
- Haihao Group successfully produces special-shaped tube sheets for Russian client2024-09-29
- Haihao Group supplies ASME B16.5 RF ASTM A694 GR.F65 weld neck flanges to customers in Singapore2024-09-25
- Haihao Group invites you to the 11th Tube China2024-09-23
- Chemical composition and mechanical properties of A182 F60 flange forgings2024-09-19
- Custom ASTM A182 F316/ 316L ASME B16.36 orifice flanges for Russian client by Haihao Group2024-09-18
- Introduction to weld overlay alloy material and the advantages of applying it to spectacle blind flanges2024-09-12