automatic
background
bar
board
bolt
box
breaker
cable
circuit
clincher
connection
construction
control
copper
current
electric
electrical
electricity
energy
equipment
green
ground
grounding
high
industrial
industry
junction
line
metal
panel
power
safety
supply
switch
system
technology
terminal
voltage
wire
wires
yellow
定額
Electrical ground wires is connected to ground copper bar or earth bonding bar in metal electric breaker box with electrical circuit breakers and electrical grounding sign near ground boltの素材 [FY310100036854]
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