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。
2519.90
Magnesia, fused or dead-burned (sintered); whether or not containing small quantities of other oxides added before sintering, other magnesium oxide, whether or not pure, (not natural magnesium carbonate)
AE 251990
AR 251990
AU 25199000
AU 251990
BR 251990
BR 251990