英文關鍵字
automatic
blocks
bricking
bricklaying
bricks
build
business
cement
cinder
clay
company
composition
concrete
construction
control
dirt
equipment
erect
factory
footage
ground
hoisting
industry
iron
lime
loam
machine
machinery
making
masonry
materials
metal
people
plant
process
product
production
rollers
sand
steel
transport
transportation
video
working