Company News
- What is SA350 LF2 CL.1？2022-06-20
- Working principle of heat exchanger tubesheet2022-06-15
- Classification society certification and third-party testing services2022-06-07
- RMRS related certification2022-06-02
- BS4504 flanges used on 2022 FIFA world cup project2022-05-30
- Customer demand for flange accessory products2022-05-25
- Introduction to swivel flange2022-05-18
- Confirm swivel flange drawings2022-05-11
- Custom swivel flange inquiry2022-05-09
- ASTM A105N flange sent to Singapore shipyard2022-05-05
- UNS C70600 Copper Nickel Flanges2022-04-26
- Hot-dip galvanized threaded flanges2022-04-22
- Haihao group is committed to providing the best quality SS316 flanges and fittings2022-04-20
- Galvanized flange is being shipped to Malaysia2022-04-18
- SA 350 LF2 CL1 long weld neck flange were exported2022-04-14
- Iraqi graphite 316L gasket order2022-04-13
- Haihao Group has produced a batch of API 6A standard flanges2022-04-06
- Hebei Haihao Group has received the DNV certificate2022-04-02
- Large-size flanges made of S275JR material2022-04-01
- Split ASME B16.5 loose flange2022-03-07