Big news for direct mail advertisers and the printers and mail houses that provide direct mail and marketing services. Univenture’s EnvyPak envelopes received wafer seal approval for automated letter ...
MARYVILLE, Ohio - April 6, 2018 - EnvyPak, America's No. 1 Clear Envelope Manufacturer, announces an innovative, patent pending, clear plastic envelope format that can reduce postage for marketers by ...
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