钢管中ASTM53是什么标准？

ASTM A53M-2012 Standard Specification for Pipe,Steel,Black and Hot-Dipped,Zinc-Coated,Welded and Seamless无缝焊接,含锌涂层,黑色热浸镀钢管标准说明：ASTM是美国材料与试验协会（American Society for Testing and Materials,ASTM）标准。

匿名回答于2024-05-13 13:32:09