2711.21 Natural gas in gaseous state 2711.21.00 D 2711.21.00 D 2711.21.01 C
2711.29 Petroleum gases and other gaseous hydrocarbons nes, in gaseous 2711.29.00 D 2711.29.00 D 2711.29.01 C
2711.29.02 C
2711.29.99 C
North American Free Trade Agreement, 1992 Oct. 7 Tariff Phasing Descriptions · 第 131 / 531 题