英文關鍵字
equipment
factory
industry
iron
job
metal
steel
technology
welding
mask
metalworking
production
repair
sheet
weld
welder
work
worker
safety
workplace
arc
argon
automatic
compound
detail
electric
gasshielded
making
manufacture
product
professional
protective
seam
semiautomatic
smith
solder
sparkles
stainless
tinplate
tinman
tinner
tinsmith
unit
whitesmith
workshop
accuracy
tool
fix
service
mechanic