慶應義塾大学 商学部・商学研究科
新保一成 研究室
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Features
NIC 1998 - code 103
Structure
Hierarchy
Section: C - Mining and quarrying
Divsion:
10
- Mining of coal and lignite; extraction of peat
Group: 103 - Extraction and agglomeration of peat
Class
1030
- Extraction and agglomeration of peat
Links
NIC@MOSPI