August 22: ① Price: The current price for manufacturers of 5.0mm large plates is 63 yuan/heavy box, and the price for manufacturers of large plates of 8.0mm and above is 64 yuan/heavy box. First-class products, including tax, and the final price is subject to the actual transaction.② Production: There are 3 production lines with a daily melting capacity of 2350 tons/day.