Products
- Haihao Factory is producing 180 degree bends for Petro pipeline2017-01-17
- JIS B2220 Threaded Flange2017-01-10
- Haihao Flange Factory finished high pressue and large size flanges on time2017-01-09
- JIS B2220 Socket Weld Flange2017-01-06
- Haihao Group finished the 50D radius pipe bends used for steel structure2017-01-04
- JIS B2220 Blind Flange2017-01-03
- Hebei Haihao Group is working hard to finish orders before Chinese New Year2016-12-30
- JIS B2220 Weld Neck Flange2016-12-28
- Client inspect tube sheets quality and production in Hebei Haihao Group2016-12-27
- JIS B2220 Slip On Hubbed Flange2016-12-26
- The tolerance about JIS B2220 flange products2016-12-23
- JIS B2220 Slip On Plate Flange2016-12-20
- What are JIS B2220 flanges products2016-12-16
- The introduce of JIS B2220 products2016-12-13
- Canada will keep the anti dumping tax on tubular goods pup joints made in China2016-12-08
- How to reduce the risk of intergranular corrosion and test it2016-11-03
- The standards and methods for intergranular corrosion test2016-11-01
- What is intergranular corrosion in metal material?2016-10-31
- SGS carried out intergranular corrosion test to stainless steel elbows of Haihao Factory2016-10-28
- ASME B16.11 A105 SCH40 1/2″-72″ Butt Weld Equal Tee2016-10-27