比较 HS 编码
输入最多 5 个 HS-6 编码（逗号分隔），并排比较说明与各国对应编码。
2939.51
Alkaloids; theophylline and aminophylline (theophylline-ethylenediamine) and their derivatives; salts thereof, fenetylline (INN) and its salts
AE 293951
AR 293951
AU 29395100
AU 293951
BR 293951
BR 2939.51.00