News
- Haihao Group finished the pipe fitting production for Dubai project2016-06-15
- What is a weld neck flange?2016-05-25
- Why we use the lap joint flange (Loose flange)?2016-05-18
- What is a lap joint flange(loose flange)?2016-05-13
- The 21th Iran oil show is started in Tehran2016-05-05
- What is a tube sheet (tubesheet) for heat exchanger?2016-04-27
- 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
- What is A234 WPB steel pipe fitting?2016-02-26
- Quality inspectors of Haihao Group do pipe fittings X-ray testing in holiday2016-02-23
- What is the type of pipe tees?2016-02-16
- Hebei Haihao Group will attend Pakistan HVACR Society Exhibition2016-01-13
- The difference between pipe bend and elbow2015-12-02
- 120 pcs hot induction bends are arranged heat treatment in Haihao pipe fitting factory2015-11-24
- Most Common Steels Used in Process Piping Industry2015-11-11
- Hebei Haihao pipe fitting factory finish the aerospace fuel piping systems order2015-11-07
- Hebei Haihao pipe fitting factory provide packing as per client requirement2015-11-03