White envelopes, wholesale price, cheap postal envelopes, finished envelopes Business standard envelope Government agency Sachet for automatic packing machine Available in various sizes according to your needs, made from bond paper, thickness 70/80/100 grams, 3 types of envelope caps, triangular, pointed, and parallel lids Sealed tightly Just use water to pat, suitable for general use. Use in office Or as the head of the envelope Company / Department / Shop