Txheej txheem kev nqes hav thiab cov cuab yeej ua ntej hauv Beiliu City, Guangxi. Tam sim no, beihu-produced sorting cov khoom siv tseem tuav cov khoom lag luam loj. Tus thawj tswj hwm ntawm lub tuam txhab tau koom rau hauv kev tshawb fawb thiab kev txhim kho T Txheej Txheem thiab ntau dua kaum xyoo ntawm nag lossis daus.