英文關鍵字
building
bulk
cargo
cast
cinder
clamshell
crane
development
dust
equipment
freight
gantry
gantrycrane
goods
grab
gripper
handling
heavy
industrial
industry
ingot
iron
lading
load
loader
machine
machinery
mover
outdoors
overload
pig
pigiron
pigmetal
port
power
railway
rehandling
shipment
shovel
steel
traveler
vehicle
work