News
- 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
- High-quality Type 01 EN1092-1 Q235 slip-on flanges for Malaysian clients2025-04-18
- Haihao Group Showcases Pipe Fitting Solutions at NEFTEGAZ 2025 – Day Two Highlights from Moscow2025-04-15
- Premium DIN 2576 SS 316L FF SO flange solutions tailored for Singapore’s industrial demands2025-04-14
- NEFTEGAZ 2025: Russia’s Leading Oil & Gas Exhibition Returns This April2025-04-10
- Specifications, applications, and material options of GOST 33259 stainless steel flat flanges2025-04-08
- Haihao Group supplies ASME B16.5 threaded reducing flanges for Singapore client2025-04-07
- Why spiral wound gaskets are essential for pipeline integrity2025-04-03
- ASTM A105 vs. A350 LF2 vs. A516 Gr.70: How to choose the right flange material?2025-04-01
- How to ensure quality in duplex stainless steel spectacle blind flanges?2025-03-31
- Haihao Group secures large flange order from a Qatari client2025-03-25
- NEFTEGAZ 2025: The Premier Oil and Gas Exhibition in Moscow2025-03-20
- NACE MR0175 compliant flanges for Russian client: Haihao Group ensures quality & timely delivery2025-03-19
- EN ISO 27509 WN compact flange with IX seal ring ordered by Singapore client2025-03-12
- Haihao Group supplying SA-182 Gr.F9 forged flanges to Russian client2025-03-07
- High-Pressure ASTM A240 UNS S32760 Paddle Blank2025-03-06
- Introducing our premium ASME B16.5 ASTM B564 UNS N06625 RF socket weld flanges for Singapore clients2025-03-05
- What is a JIS B2220 threaded flange?2025-02-28