Ntawm no hauv Yiwu City Tuam Tshoj, koj tuaj yeem pom ntau cov khoom lag luam zam hniav nyiaj hniav kub, ntau dua 5000 lub chaw tsim khoom thiab cov neeg cog lus qis, suav nrog txhua yam ntawm cov hniav nyiaj hniav kub zam. cov khoom tseem ceeb yog cov hniav nyiaj hniav kub zam.