- Haihao Group carried annual verification of CE(PED) certification三 18, 2016
- Hebei Haihao Group and Wavin Group work together to support Pakistan piping system market三 11, 2016
- Quality inspectors of Haihao Group do pipe fittings X-ray testing in holiday二 23, 2016
- Hebei Haihao Group will attend Pakistan HVACR Society Exhibition一 13, 2016
- 120 pcs hot induction bends are arranged heat treatment in Haihao pipe fitting factory十一 24, 2015
- Hebei Haihao pipe fitting factory finish the aerospace fuel piping systems order十一 07, 2015
- Hebei Haihao pipe fitting factory provide packing as per client requirement十一 03, 2015
- The most hardworking client of 2015 visited Haihao Pipe Fitting Factory十 20, 2015
- The hot induction pipe bends order finished in Haihao Group十 19, 2015
- Steel pipe fittings material and production十 09, 2015
- Pipe fitting manufacturing processing methods十 02, 2015
- How to identify the quality of butt welding steel pipe fitting九 27, 2015
- Types of steel pipe fittings九 26, 2015
- Haihao Group offer steel pipe fitting and flange products九 02, 2015
- Several questions need to pay attention to when buy pipe fittings七 04, 2015
