At 5:20 p.m. on August 20, in the continuous casting and finishing area of ​​Panzhihua Xichang Iron and Steel Vanadium Steelmaking Plant, shiny ingots "walked" out of a large-scale sealing device, marking the successful one-time trial run of the company's continuous casting ingot grinding machine project after 160 days of construction, and the history of manual cleaning of ingots is about to end.