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。
2933.37
Heterocyclic compounds; containing an unfused pyridine ring (whether or not hydrogenated) in the structure, N-phenethyl-4-piperdone (NPP)
AU 29333700
BR 2933.37.00
CA 29333700
E2 2933370000
EU 29333700
GB 2933370000