... resistance 3 recycable 4. OEM Kraft Bubble EnvelopeBubble envelope mailers, fully laminated Kraft and air cellular ... are welcomed. Suggested applications: Drugs & vitamins, Audio CDs, CD-ROMs, Dental & medical supplies, Watches, Jewelry, Video cassettes, ... specialized in making various sizes of envelopes, such as paper envelope, international envelopes, bubble envelopes, unusual envelopes, printed ...