News
- Tube China Fair 2016 was held in Shanghai 25th September2016-10-18
- NDT Test Methods used for piping products2016-10-17
- NDT application in steel pipe fittings manufacturing2016-10-14
- What’s China Tube Exhibition?2016-10-11
- What’s non-destructive testing (NDT)?2016-10-09
- Brazil may extend Anti-Dumping Duty on seamless steel line pipes from China2016-10-08
- Haihao Group attend the China International Tube&Pipe Industry Trade Fair2016-09-29
- Carbon steel butt weld pipe fittings from Brazil,China,Japan,Taiwan and Thailand2016-09-28
- Spectacle blind flanges,ring spacers and paddle flanges are finished in Hebei Haihao2016-09-26
- Hebei Haihao Group finished supplement flange order2016-09-23
- Technical specification of spectacle blind flange2016-09-19
- How to use a spectacle blind flange?2016-09-18
- Types of spectacle flanges2016-09-14
- The meaning and type of steel pipes2016-09-05
- The advantage of pipe grooved ends joints2016-09-05
- The usage of pipe grooved ends joints2016-09-02
- What is a bevel end？2016-08-25
- Hot induction factory bends under sand blasting in Hebei Haihao2016-08-24
- Pipe and fitting ends in piping system joint2016-08-23
- The pipe end type of steel pipe and pipe fittings2016-08-17