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。
5206.21
Cotton yarn; (not sewing thread), single, of combed fibres, less than 85% by weight of cotton, measuring 714.29 decitex or more, (not exceeding 14 metric number), not for retail sale
AE 520621
AR 520621
AU 520621
BR 520621
BR 5206.21.00
CA 520621