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Envelope C4 Sigel DU330 Transparent 25 pcs
Transparent C4 envelope made from special paper, designed to hold A4 documents (229 x 324 mm). The Sigel DU330 pack contains 25 peel-and-seal envelopes without a window, suitable for organizing and protecting important papers while maintaining a professional appearance.
Transparent construction allows quick identification of contents without opening the envelope. The special paper offers a balance of durability and a neat finish. Peel-and-seal closure ensures fast and secure sealing without additional adhesive. Compatible with common office workflows and looks professional for business correspondence.
Insert A4 documents directly into the envelope so they lie flat within the C4 format. Remove the protective strip from the peel-and-seal flap and press firmly to close. For mailing, ensure address and postage are applied to the outer surface. Avoid overfilling to maintain a secure seal and preserve the envelope shape.
Store envelopes flat in a cool, dry place to prevent creasing. For best results when printing addresses or labels, test compatibility with your printer type; these envelopes are suitable for inkjet and laser printers as well as copiers, but always verify feed settings and print tests before processing large batches.
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