explosion
angle
blank
bolt
build
building
close
connection
connector
construction
consume
control
counter
cpf
crane
domestic
energy
engineer
engineering
equipment
factory
fit
flowing
fuel
gas
gas leak
gas pipe
glow
hold
home
house
industry
line
metal
natural
natural gas pipe
oil
pipe
pipeline
pressure
refinery
safety shutoff
shutoff
stove
technology
ukraine
valve
wall
yellow
yellow gas