電極
alloy
arc
arcweld
background
black
building
bundle
colorful
electric
electricity
electrode
energy
equipment
glove
heap
image
industrial
industry
insulation
iron
isolated
jaw
join
mask
melting
metal
metallurgy
peg
photography
product
professional
puttee
rod
row
shot
skin
specialist
steel
stick
still
technology
tool
weld
welded
welder
welding
white
work
worker