cable
hollow core
sand
cement
aggregate
scale
measuring tape
above
below
inside
outside
extend
mobile crane
mixing concrete
transport truck
hard
soft
too hard
too soft
too low
too high
too wer
too dry
wear
hard hat
safety shoes
becareful
gloves
dangerous
remote control
wire mesh
pipe
cut
water
plug
spray
extension cable
finish
ground floor
first floor
second floor
quality control
recheck
install
erect
hot
big
small
box
brick
mortar