New 1#3800m3 Blast Furnace Project of Laiwu New and Old Kinetic Energy Conversion Project of Shandong Iron and Steel Co., Ltd.: We participated in the construction of more than 8000 tons of this project, including the fabrication and construction of steel structures such as hot air enclosure pipe, blast furnace body, lower frame column, box girder, main belt corridor, ascending and descending pipe.