عملکرد مطلوب aisi 321 فروش داغ
عملکرد مطلوب aisi 301 فروش داغ. In the 1930s and 1940s, the American Iron and Steel Institute (AISI) and SAE were both involved in efforts to standardize such a numbering system for steels. 1.4301,AISI 304、1.4306,AISI 304L,1.4305,AISI 303-