News
- HRSG Project of SamsungGroup in Qatar2018-08-07
- Haihao Group attended the 4th INDONESIA TUBE & PIPE EXPO 20182018-07-27
- Haihao Group offer excellent piping solutions for sewage treatment project in Iraq2018-07-25
- Cooperation with Van Leeuwen for Egypt Project2018-07-23
- What is elbow and bend?2018-07-16
- The difference between pipe bend and elbow2018-07-16
- BV test butt weld fittings and flanges in Haihao Group2018-07-16
- Packing type of flange,pipe fitting and steel pipe2018-07-16
- ASME B16.9 ASTM A403 WP316L 90° Pipe Bend 3D2018-07-09
- Annealing process in the pipeline2018-06-29
- Port congestion for Cat Lai of Vietnam2018-06-26
- What is cement lining for pipe fittings?2018-06-26
- Steel price will drop next week2018-06-25
- Impact test of EN10204 for German order in Haihao Group2018-06-15
- What is impact test for pipe fitting?2018-06-14
- What is pipe fittings’ hardness test?2018-06-13
- BV witness Haihao Group process EN10204 type 3.2 certificate testing for TOP 500 companies2018-06-12
- Mechanical properties test by BV in Haihao Group2018-06-05
- What is mechanical properties test?2018-05-30
- What is chemical composition test?2018-05-29