2836.20 Disodium carbonate 2836.20.00 C 2836.20.00 A 2836.20.01 C

2836.30 Sodium hydrogencarbonate (sodium bicarbonate) 2836.30.00 A 2836.30.00 D 2836.30.01 C

2836.40 Potassium carbonates 2836.40.00 D 2836.40.10 A 2836.40.01 C

2836.40.20 A 2836.40.02 A

2836.50 Calcium carbonate 2836.50.00 A 2836.50.00 D 2836.50.01 A

2836.50.02 A

North American Free Trade Agreement, 1992 Oct. 7 Tariff Phasing Descriptions · 第 175 / 531 题