機器
environmental
attention
barrel
beware
biohazard
biological
caution
chemical
chemicals
chemistry
construction
container
coveralls
danger
danger icon
danger icons
dangerous
dangerous goods
ecology
emergency
environmentally hazardous
error
exclamation
factory
fail
flammable
harmful
hazard
hazardous
industrial
industry
injury
label
laboratory
manufacturing
poison
precaution
pressure
protection
protective
quality control
radioactive
risk
safety
security
sign
signal
substance
symbol
toxic
toxicity
traffic
warn
warning
waste
yellow