英文關鍵字
arm
boom
bucket
build
building
business
city
construction
crane
delivery
development
elevator
engineering
equipment
field
first
heavy
helmet
high
hoist
hydraulic
icicles
industrial
industry
job
lift
lifter
lifting
logistics
machine
manufacturing
mechanical
menace
metal
moving
outdoors
person
platform
safety
service
steel
street
tall
technology
tool
transportation
truck
vehicle
view
white
work
yellow