Is there any anti-dumping when American customers import aluminum plates from China?

For some specifications of aluminum plates, American customers purchase aluminum sheets from China with anti-dumping, مثل 1 سلسلة صفائح الألمنيوم, 3 سلسلة لوحة الألومنيوم, 5 series aluminum sheets, 8 series aluminum sheet alloys and countervailing tax rate 46.48% – 116.49%, anti-dumping 49.85-59.72%, but there is no anti-dumping for the thickness above 6.35mm, and there is no anti-dumping for 6 سلسلة لوحة الألومنيوم.