Coal

Coal (substance)

active

Code	`34323004`
Semantic tag	substance
Module	international
Definition	primitive
Effective time	20020131

Parents (2)

767721007Coal and petroleum agent substance
224764003Solid fuel substance

Children (5)

52141008Coal dust substance
53034005Coal tar substance
1157112002Coal tar and/or coal tar derivative substance
3167007Hard coal substance
55895006Soft coal substance