英文關鍵字
angle
angleiron
bar
building
bunch
bundle
capping
cast
china
city
commercial
concrete
container
corrosion
crane
docks
durable
equipment
factory
ferrous
fifo
fittings
framework
fret
fusing
goods
group
heavy
industrial
industry
lines
manufacture
material
metal
metallurgy
mountings
pile
production
rail
reinforcement
rust
sheaf
steel
stuff
technology
terminals
transport
transportation
unloading
warehouse