Negative pressure flexible duct for ship-building

タイトルまたは説明

1. Made of fire-retardantPVC material and helix steel wire
2. Easily to connect due to flexible
3. Enduring the high temperature and oleic acid.
4. Acid & alkali resistant and corrosion resistant and fire resistant.
5. Schlep easilywherever exhaust and inhalation the air in the field condition due to light weight
6. Prevent the workers from the suffocating by improving dust air into fresh air .
7. Negative PressureVent Duct . The Pitch of the steel wire is about 6cmand it is very close to each other , so it is widely used for exhausting in shipp building .