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26.05.2025

Enhancing Surface Quality of HFW Pipes by Adjusting Extrusion Roller Parameters

Abstract This study analyzes the causes of surface defects in high-frequency welded pipe billets, specifically, linear indentations and molten metal pits caused by the upper extrusion rollers. To address...
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ISO 9001:2008 Certificate
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ISO 9001:2008 Certificate
Description
 Model No.: CN06/01941
Provision of export services of pipeline equipments, including valves, pipes, fittings and flanges.
Certificate Standard: ISO 9001:2008.
Number: CN06/01941.
Valid:24-Nov-2015 to 15-Sep-2018.
Issued By: SGS.