Specifications:

Brand: Kingdee

Product Name: Kingdee Envelopes

Material: Full wood pulp kraft paper

Features: High confidentiality, multiple sizes available, large capacity, suitable for writing with various tools such as fountain pens, ballpoint pens, and stamps

Usage: Suitable for mailing, labeling, and postal coding

Sizes Available: No. 1, No. 2, No. 3, No. 5, No. 7, No. 9 envelopes

Special Features: No text on the back of No. 1 and No. 2 envelopes, not suitable for mailing

Details: Precision-cut edges using die-cut metal plates for smooth and neat finish, water-soluble adhesive for strong and secure sealing

Note: The provided information has been summarized and organized into product specifications in English format.