Copper: Pushed by short-covering to close, each callback is an opportunity to step in. Aluminum: The closing price is conducive to the upside in the afternoon. From the disk observation, the current point is the short-term bottom, and the price looks high. Zinc: The long-term liquidation disc has been significantly weakened, and the short-term price is expected to rise. Nickel: The close above 13930 U.S. dollars will help the market outlook. Date: 2004-10-18