The grades include B7, Grade 2, Grade 5, Class 4.8, Class 5.8, Class8.8 and Class 10.9, S. S304, S. S316. The length in American and English standard can reach 144 inches, and in German standard, it can reach 6 meters. The sruface streatments have ZP, HDG, BLACK, PL etc, and also we have many different packings for customers choice.