機器
architecture
background
brick
bucket
build
builder
building
cement
concrete
concreting
construction
contractor
employment
equipment
finishing
floor
foundation
gravel
house
improvement
industrial
industry
labor
laying
man
manual
mason
material
metal
mix
mixer
mixing
mortar
plaster
pour
professional
project
renovation
sand
site
stone
structure
surface
tool
trowel
water
wet
work
worker