2. Nima uchun zanglamaydigan po'latdan turli xil materiallar sinflari mavjud?
In the smelting process of stainless steel, due to the addition of alloying elements, as well various qty of the elements, its characteristics are also different, in order to distinguish them, they are crowned with different material numbers. The following sheet is the content table of "alloying elements" for various grades of stainless steel material