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。
8405.90
Generators; parts of producer gas, water gas, acetylene gas and similar water process gas generators, with or without their purifiers
AE 840590
AR 840590
AU 840590
BR 840590
BR 8405.90.00
CA 840590