*Red label on the envelope is to covering our customer's LOGO.

Size: 360mm*480mm. Super big envelope. Only can using hand-made. Chinese Envelope. We have storage knife model.

Tyvek envelope the best protection of the inside product

The envelope manufactured by DuPont Tyvek exclusive shielding material is tenacious and durable. It can experience the test of various extreme conditions. It is light, water resistant, and tear resistant and can defend to pierce. It is not paper, but Tyvek to protect inside documents and goods which you want to protect

Defend to piece, tough, material for environment protection
·Precise printing, a performance of international image of enterprise.

Lightproof, safeguard correspondence secret
·Tear-resistant, guaranteed the perfect correspondence of long-distance mails

Good water resistance, the liquid corrosion resistance

Lightweight (1/3 weight of similar thickness kraft paper) to save the postage.