Company News | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L seamless pipes

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Haihao Group: Hebei Haihao High Pressure Flange Pipe Fitting Group Cofoi criada em 1982, localizado em Mengcun County-a cidade natal de acessórios para tubos na China

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Company News

31 21-05
Application and introduction of swage nipple The swage nipple is also called reducer. It is a kind of forged pipe fittings, usually using American Stan ...
20 21-05
Predictions of steel price In the last article,we analyzed why the steel price soared so fast.As a steel pipeline supplier,now we car ...
19 21-05
Warship class SS317L 90 degree elbow It is well known that SS317L(00Cr19Ni13Mo3, UNSS31726) alloy is a molybdenum-based austenitic stainless st ...
10 21-05
Large size pipe fitting order from Canadian customer Hebei haihao group has been producing pipe fittings for about 40 years. We have a professional team and te ...
08 21-05
BS4504 EN10025 S235JR flanges to our UK customer Hebei Haihao is specialized in varies of standard flanges, for example, ASME, EN, DIN, BS, JIS, KS, GOST a ...
29 21-04
Comparison between Direct Reading Spectrometer and Chemical Analysis Method for PMI In pipeline industry,both Direct Reading spectrometer and Chemical Analysis Method are used to identify th ...