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jhystamping

https://www.jhystamping.com/products/curved-access-door-cad.html
Curved Access Door (CAD)
Specifications:
Curved access door for maintenance of circular ducts.

Material: galvanized steel.

Bolts/Nuts: mild steel and zinc coating.

Gasket: cellular sponge gasket or PUR gasket.

Locking knob: available in red or blue color.
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