機器
background
board
boiler
brown
chemical
chiller
circle
clay
closeup
concept
condenser
cooling
corrosion
deposits
engineer
engineering
equipment
exchanger
factory
hard
heat
heat exchanger
industrial
industry
insoluble
iron
macro
maintenance
metal
metallic
mineral
nobody
old
pipe
plant
round
rust
rusty
salts
scale
services
sheet
sheet plate
slag
steel
surface
system
texture
tube
定額
Tube sheet or plate of heat exchanger boiler closeup texture selective focus background opened for inspection maintenance or cleaning from insoluble hard mineral deposits salts scale and corrosion.の素材 [FY310181347435]
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