Flexible air duct for ventilation from confined spaces in the construction of large chemical storage tanks.
Schlüsselwörter
ventilate,
ventilation,
entry,
space,
confine,
danger,
fresh,
open,
conditioner,
main,
supply,
building,
fan,
tape,
safety,
vessel,
warning,
pipe,
blow,
flow,
metal,
iron,
round,
industrial,
environment,
hole,
duct,
rust-eaten,
factory,
rescue,
tank,
construction,
design,
manhole,
air,
industry,
confined,
steel,
heat,
wind,
blower,
cooling,
plant,
flexible,
blower,
system,
tube
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