浜辺
ballast
bank gravel
building
building industry
civil engineering
construction
construction engineering
construction technique
development
digger
earth excavation
earth removal
earth works
earthwork
engineering
erection
excavating machine
excavation
excavation works
excavator
extractive industry
fabrication
generation
grading
grail
gravel
gravel aggregate
industry
mining
open cast
production
quarry gravel
winning