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• The Most Hardworking Client of 2015 Visited Haihao Pipe Fitting Factory2021-11-04
• How to identify the quality of butt welding steel pipe fitting2021-11-04
• Steel pipe fittings material and production2021-11-04
• China get more market shares in the forging flanges and rings field2021-11-04
• The EU imposed anti-dumping duties for stainless steel pipes and fittings from China2021-11-04
• Certain Pup Joints for Oil & Gas Pipeline Expiry Review Decision2021-11-04
• Brazil may extend Anti-Dumping duty on seamless steel line pipes from China2021-11-04
• Devaluation of the RMB effection on fitting and flange exports2021-11-04
• Japanese steel makers are facing whammy2021-11-04
• The relevant introduction of eccentric diameter tube2021-11-04
• Chinese Wind Power Flange Industry-Hebei haihao group2021-11-04
• Chinese H beam export prices was stable2021-08-30
• The popular pipe fitting types2021-08-26
• Haihao Group attend the Tube China 20162016-11-09