Description
C4 (Big A4) Envelopes measure 324mm × 229mm, perfectly sized to fit A4 sheets without folding. They are commonly used for business letters, corporate documents, certificates, and marketing materials. Available in standard or branded/custom-printed options, with peel & seal, self-seal, or gummed closures, these envelopes combine practicality with a polished presentation for both everyday office use and formal communication.
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