News
- Production and testing of ASME B16.5 F51 Flanges for our Italian client2025-07-01
- Production and Delivery of Custom S235JR2 Flanges for Danish Pipeline Retrofit2025-06-27
- High-Pressure RTJ Flanges and Spacers for Arctic Pipeline Project2025-06-26
- Haihao Group delivers ABS certified ASME B16.48 SS316 paddle spacers & blanks to Singapore client2025-06-24
- Custom Flanges Manufactured with ASTM A516 Gr.70 Steel for Industrial Applications2025-06-19
- Custom 600# RTJ Sight Glass Flange Supplied to Côte d’Ivoire2025-06-17
- Precision Flow Control with ASME B16.36 RF A105 Orifice Flange Supplied by Haihao Group2025-06-10
- What Is the Difference Between Spectacle Blind and Spade in Piping Systems?2025-06-05
- Haihao Group’s Premium ASME B16.5 A105N RF Weld Neck Flanges2025-06-03
- ASME B16.5 ASTM A105 weld neck flange overlay INCONEL UNS N066252025-05-26
- Haihao Group supplies WN Compact Flange with IX Seal Ring Compliant with BS EN ISO 275092025-05-23
- Custom 18″ ASME B16.36 orifice flange supplied to Singapore client by Haihao Group2025-05-22
- Haihao Group provides EN1092-1 P250GH galvanized threaded flanges for Slovak customer2025-05-21
- Supplying high-pressure API 6A Type 6BX nickel alloy flanges to Singapore2025-05-20
- Haihao Group successfully delivers EN 1092-1 Type 01 Q235B RF slip-on flanges to Malaysia2025-05-14
- Haihao Group Successfully Delivers ANSI B16.5 ASTM A105 RF Weld Neck Flanges to Hong Kong Client2025-05-06
- Haihao Group completes ASME B16.5 class 150 316 custom blind flanges order for Spanish client2025-04-30
- Haihao Group successfully completes order for ГОСТ 33259 12Х18Н10Т/ AISI321 RF weld neck flanges for Latvian client2025-04-28
- Installation guidelines for orifice flanges and internal weld seam grinding2025-04-24
- Haihao Group delivers premium ANSI B16.5 ASTM A105N FF weld neck flanges to UAE client2025-04-21