Company News
- The difference between ASTM A105 flange and ASTM A105N flange2017-05-04
- What is ASTM A105N flange?2017-05-03
- What is A105 steel flange?2017-04-21
- Forged steel blind flange and plate cut blind flange2017-04-17
- HAIHAO GROUP ПРИГЛАШАЕМ ВАС ВСТРЕТИТЬ НА ВЫСТАВКЕ НЕФТЕГАЗ2017-04-11
- Precision tubes order for GPC are inspected2017-04-07
- Haihao Group look forward to the 17th Russia International Oil and Gas Equipment and Technology Exhibition2017-04-01
- Haihao Pipe Fitting Factory supplys lateral tees to project in Vietnam2017-03-30
- Latrolet production and specification in Haihao Pipe Fittings Factory2017-03-24
- Socket welding & thread lateral tee production and specification2017-03-22
- Butt welding lateral tee production and specification of Haihao Pipe Fittings Factory2017-03-20
- Seamless lateral tee and welded lateral tee information2017-03-17
- What is the difference between lateral tee and True WYE2017-03-15
- Lateral pipe fittings definitions and types in Haihao Group2017-03-13
- New tube sheets for heat exchangers are going to finished in Hebei Haihao Group2017-03-02
- What is the difference between working burst and proof test pressure2017-02-23
- Haihao Group finished high quality customized flange collar products2017-02-03
- Haihao Factory is producing 180 degree bends for Petro pipeline2017-01-17
- Haihao Flange Factory finished high pressue and large size flanges on time2017-01-09
- Haihao Group finished the 50D radius pipe bends used for steel structure2017-01-04