Company News
- Haihao Group finished spectacle blind flange order2016-09-26
- Technical specification of spectacle blind flange2016-09-21
- How to use a spectacle blind flange?2016-09-19
- Types of spectacle flanges2016-09-18
- Advantage of pipe grooved ends joints2016-09-08
- The usage of pipe grooved ends joints2016-09-05
- The meaning and type of steel pipes2016-09-05
- What is a bevel end?2016-09-02
- The pipe end type of steel pipes and pipe fittings2016-08-24
- Hot induction bends under sand blasting in Haihao Group2016-08-22
- Haihao Group showed piping products in 21th Iran Oil & Gas show2016-06-21
- Haihao Group finished Africa pipeline project products2016-06-20
- Haihao Group finished the pipe fitting production for Dubai project2016-06-15
- The 21th Iran oil show is started in Tehran2016-05-05
- Haihao Piping Group presented at CIPE & CIPPE Beijing2016-04-25
- Hebei Haihao Group is looking for translator for Iran Oil Show2016-04-12
- Haihao Group will attend 21st Iran International Oil,Gas,Refining,Petrochemical Exhibition2016-04-08
- Haihao Group carried annual verification of CE(PED) certification2016-03-18
- Hebei Haihao Group and Wavin Group work together to support Pakistan piping system market2016-03-11
- Quality inspectors of Haihao Group do pipe fittings X-ray testing in holiday2016-02-23