慶應義塾大学 商学部・商学研究科

新保一成 研究室

開発と環境の経済分析...

NIC 2004 - code 142

Structure

Hierarchy

  • Divsion: 14 - OTHER MINING AND QUARRYING
  • Group: 142 - Mining and quarrying , n.e.c.

Class

  • 1422 - Extraction of salt. [Includes salt mining, crushing and screening and salt production by solar evaporation of sea water, lake brine or other natural brines.]

Links