; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (236) Metal gauzes Heading 9902.14.90 is amended— (A) by amending the article description to read as follows: Gauzes containing platinum, palladium and rhodium (provided for in subheading 7115.10.00) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (237) Strips consisting of silver and copper and zinc Heading 9902.14.91 is amended— (A) by amending the article description to read as follows: Clad strips of silver, further worked than semimanufactured, each containing 54 percent or more but not over 56 percent by weight of silver; having three layers with one layer containing 87 percent or more but not over 89 percent by weight of silver and 1.1 percent or more but not over 3 percent of tin, a second layer containing 99.9 percent or more by weight of silver, and a third layer containing 14.5 percent or more but not over 15.5 percent by weight of silver, 79 percent or more but not over 81 percent of copper and 4.8 percent or more but not over 5.2 percent of phosphorus; measuring 15.65 mm in width and 0.95 mm in thickness, presented in coils (provided for in subheading 7115.90.40) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (238) Germanium unwrought in ingot form Heading 9902.15.13 is amended— (A) by amending the article description to read as follows: Ingots of germanium, unwrought, each weighing 0.5 kg or more but less than 2 kg (provided for in subheading 8112.92.60) ; and (B) by striking 12/31/2020 and inserting 12/31/2024 . (239) Tweezers Heading 9902.15.18 is amended— (A) by amending the article description to read as follows: Tweezers (provided for in subheading 8203.20.20)