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Engineer controlling the quality of water Stand on the risky stairs at high places operating
Related tags:
- construction
- man
- men
- work
- worker
- life
- industry
- outdoor
- ecology
- environment
- hanging
- outdoors
- garbage
- platform
- engineering
- industrial
- factory
- people
- site
- construction site
- male
- engineer
- builder
- working
- safety
- adult
- quality
- uniform
- helmet
- reservoir
- maintenance
- tank
- risk
- hardhat
- cleaning
- construction worker
- microbiology
- sewage
- quality control
- environmental conservation
- construction industry
- protective clothing
- aeration
- mid adult
- asian and indian ethnicities
- adults only
- storage tank
- gas tank
- water tanks
- water tower storage tank