accident
bad
break
burst
cement
condition
construction
corrosion
damaged
disaster
discharge
emergency
energy
engineering
equipment
failure
fracture
gas
heating
hot
industrial
industry
iron
leak
leakage
leaking
maintenance
metal
old
pipe
pipeline
piping
plumbing
pollution
pressure
problem
repair
rust
rusty
service
steam
steel
stream
system
technology
tube
valve
water
wet
winter