In 2025,China's steel industry is undergoing a profound and systematic transformation under the guidance of the national "dual carbon" target,the transformation of the macroeconomic structure,and changes in the global market,The industry as a whole exhibits the significant characteristics of "de

Standard Number: ASTM A179 / A179M"A179" represents the Imperial unit version."A179M" represents the International System of Units (SI, Metric) version. The technical content is equivalent, only the units differ.Chinese Name: Seamless Cold-Drawn Low-Carbon Steel Tubes for Heat Exchangers and Condens

I. Standard OverviewASTM A178 is a technical specification developed by the American Society for Testing and Materials (ASTM) for resistance welding of carbon steel and carbon-manganese steel boiler tubes and superheater tubes. This standard primarily covers small-to-medium diameter steel tubes used

DIN 1629 significa "Tubos redondos de acero sin costura, acero de grano fino soldable para aplicaciones específicas".El núcleo de esta norma es la especificación de una serie de tubos de acero sin costura con excelente soldabilidad y buenas capacidades de conformado en frío. Estos tubos están fabric

The Core Control Mechanism of the License System: How to Precisely Combat "Paying for Others"The steel export license system is not simply a piece of paper, but a crucial node embedded in a multi-departmental collaborative system involving customs, taxation, foreign exchange, and commerce. Its effec