activity

big

building

business

cable

construction

crane

development

dock

elevator

engineering

equipment

exterior

growth

heavy

high

hoist

hoisting

industrial

industry

iron

isolated

jib

lift

lifting

load

machine

machinery

metal

metallic

nobody

object

picking

single

site

sky

steel

strength

structure

tall

technology

tool

tower

truck

urban

vertical

white

winch

work

yellow