機器
acceptance
asia
asian
construction
customer
employee
engineer
engineering
equipment
explaining
factory
foreman
group
hardhat
indonesia
indonesian
industrial
industry
inspection
instruction
job
labor
laborer
man
manager
manufacturing
metal
metalworker
people
plant
production
protection
safety
southeast
steel
supervisor
team
teamwork
technology
test
top view
worker
working
workplace safety
workshop