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Jun 04, 2015 - 02:08 PM
The UNV19004 Tyvek Expansion Envelope have a 4" expansion.
How much do the envelopes expand? Deluxe Tyvek Expansion Envelopes, Open-Side, 4" Capacity, #15 1/2, Square Flap, Self-Adhesive Closure, 12 x 16, White, 50/CT Business Envelopes and Mailers
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Open Jun 04, 2015 - 01:19 PM
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