Sticking to aluminum on the shearing machine row is caused by unclean rollers of the straightening machine; all multi-roll straighteners during finishing are easy to stick to the surface of the sheet; during hot rolling or cold rolling, the roll sticks to aluminum, causing sticking to the strip.

The reduction amount is too large during hot rolling, and cracks from the end of the ingot; the heating temperature of the ingot is too high or too low.

Aluminum wheels exported 8.67 tons in May, compared with 3.58 in the same period last year, but a cumulative increase of 142%. The cumulative export in the first five months was 42.65 tons, a cumulative increase of 56%; from the perspective of imports, the monthly import volume was 1597 tons, a decr