• How to reduce the risk of intergranular corrosion and test it2021-11-09
• The standards and methods for intergranular corrosion test2021-11-09
• What is intergranular corrosion in metal material?2021-11-09
• SGS carried out Intergranular Corrosion Test to stainless steel elbows of Haihao Factory2021-11-09
• Hebei Haihao technical department communicates with JOINTECH Pakistan2021-11-09
• Hebei Haihao Group finished the IBR certificated steel pipe fittings2021-11-09
• The IBR certificate approving process in Hebei Haihao Pipe Fitting Group2021-11-09
• How the steel pipe fittings get approved IBR certificate?2021-11-09
• Tube China Fair 2016 was held in Shanghai 25th September2021-11-09
• NDT application in steel pipe fittings manufacturing2021-11-09
• Hebei haihao group show products in Tube China 2016 in ShangHai2021-11-09
• What is Tube China Exhibition？2021-11-09
• What is Nondestructive Testing (NDT)?2021-11-09
• USITC research the antidumpling duty on carbon steel butt weld pipe fittings from China and other co2021-11-09
• Spectacle blind flanges,Ring Spacers and paddle flanges are finished in Haihao Group2021-11-09
• Hebei Haihao Group finished supplement flange order2021-11-09
• Technical specification of spectacle blind flange2021-11-09
• How to use a spectacle blind flange?2021-11-09
• Types of spectacle flanges2021-11-09
• The advantage of pipe grooved ends joints2021-11-09