英文關鍵字
abstract
basic
black
blade
blowpipe
bond
burning
chip
close
engineering
flame
forge
fuse
glow
glowing
hammer
handcraft
handicraft
hard
hot
industry
iron
macro
manual
marin
material
melting
metal
metall
new
operations
orange
production
raw
steel
stick
swarf
technique
the
under
water
weld
wool
work
working