"The World's
Toughest High Speed Rubber Door"
is designed for door openings over 30' x
30'. This big and tough door provides dependable performance in the most
rugged industrial applications. The heavy duty side frames, thick rubber
curtain and patented windlok design form a near airtight seal and can
resist extreme wind pressures.
The UltraBig M&I
is designed to last. It is durable, safe, low cost
to maintain and can take a hit.
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