1. Steel melting: EAF + LF + VD + ESR (optional for tool & die steel) 2. Produce process: Hot rolled 3. Heat Treatment: Annealed / Quenched+Tempered 4. Surface condition: Black surface, smooth 5. Size: thickness 10-200mm; width 260-700mm (usually, the standard width is 610mm) 6. Length: 2000-5800mm (for 20" container loading), or according to customer's requirement. 7. UT test: according to SEP1921-84 G3 C/c, or finer