News
- Haihao Group finished GOST 12820-80 slip on flanges used for Rumaila oilfield in Iraq2019-03-21
- Haihao Group finished the RST37-2 throttle orifice plate2019-03-20
- Haihao Group finished the tubes and tube sheet for heat exchangers2019-03-19
- KLINGERSIL C4400 gaskets | flat ring gasket,flat gasket inside jacketed2019-03-18
- KLINGERSIL C-4400 Non asbestos gasket2019-03-15
- The difference between washer and gasket-what is washer2019-03-14
- The difference between gasket and washer-what is gasket2019-03-13
- Six common flange gasket used in pipeline-Graphite gasket,Metallic gasket,Spiral wound gasket2019-03-12
- What is a flange gasket? Types of gaskets used in pipeline2019-03-12
- Types of flange insulation gasket kit2019-03-08
- What are flange insulation products?2019-03-07
- Selection of flanges in pipeline-American system2019-03-06
- Selection of flanges in pipeline-European system2019-03-05
- Flanged olets for Malaysian client2018-11-14
- Haihao Group takes samples from forged flanges blank and process test2018-10-23
- Haihao Group perform PMI testing for flanged pipe2018-10-11
- Spectacle flange introduction2018-08-29
- Production Limitation Lead to the Crazily Rising of Price2018-08-29
- Economic development and environmental protection go hand in hand2018-08-29
- OD 3000mm above big size pipe fittings and flange2018-08-28