税关

• The agricultural economy was fairly developed in the han dynasty , and it was a well - known metallurgical center in the tang and song dynasty , and in the ming and the qing dynasty it was an important place for tax collection ; the commerce and trade were very prosperous
  汉朝时当地农业经济就已相当发达，唐宋时期成为全国有名的矿冶中心，明清时期是全国重要税关所在，商贸十分繁荣。