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word usage - Is it called a threshold or sill or door frame? - English Language Learners Stack Exchange
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Pemko Aluminum Automatic Door Bottom, Mill Finish, PemkoPrene, 9/16”W x 36"L x 1-3/8”H (411APKL36) - Industrial Hardware - Amazon.com
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Amazon.com: Suptikes Door Draft Stopper Under Door Seal for Exterior/Interior Doors, Door Sweep, Soundproof Door Bottom Weather Stripping, 2 Inch W x 39 Inch L, Brown : Home & Kitchen
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word usage - Is it called a threshold or sill or door frame? - English Language Learners Stack Exchange
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