Our company's stainless cold rolling mill has successfully rolled off an 8mm thick ultra-pure steel hot coil, breaking the historical thickness. Thick ultra-pure ferritic stainless steel is mainly used for high-end automotive flanges and other parts. The annual domestic demand is about 5,000 tons, and the export order volume is 1,000 tons to 2,000 tons. At present, the performance and surface quality of this product have been significantly improved, and the user feedback is good. Our company has achieved stable production of ultra-pure steel of this specification and thickness.