9027.10.60 A

9027.20 Chromatographs and electrophoresis instruments 9027.20.10 D 9027.20.42 A 9027.20.01 A

9027.20.90 A 9027.20.44 A 9027.20.02 A

9027.20.80 A 9027.20.99 A

9027.30 Spectrometers, spectrophotometers and spectrographs using 9027.30.10 A 9027.30.40 A 9027.30.01 A

9027.30.91 D 9027.30.80 A 9027.30.02 A

9027.30.99 A 9027.30.99 A

North American Free Trade Agreement, 1992 Oct. 7 Tariff Phasing Descriptions · 第 502 / 531 题