The aggregate production in Korea. (A) production rate of permission and declaration, and (B) sand and gravel.|@|~(^,^)~|@|The aggregate production in Korea, by type and source. (A) by sources, (B) production rate of sand by sources, (C) production rate of gravel by sources.|@|~(^,^)~|@|The distribution map of production of aggregate in Korea. (A) total production, (B) sand, (C) gravel, (D) river, (E) land, (F) marine, (G) forest, (H) crushed, (I) washing.|@|~(^,^)~|@|The comparison of number of local government and quantity of aggregate by size of operation.|@|~(^,^)~|@|The comparison of number of operation and quantity of aggregate by size of operation.|@|~(^,^)~|@|Distribution map of active operations. (A) aggregate type, (B)aggregate source, (C) permission and declaration, (D) quantity of aggregate.

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