... B6 2.Material:white or kraft paper,70~120gsm 3.0~4C LOGO printed paper envelop: 1) Size: According to ... )process 3) Materials: offset paper,Kraft paper, cardboard, special paper, art paper, close-line paper, chipboard, white paper 4) Surface disposal: Glossy/ ... , gift envelope, CD packing envelope, white standard envelope, kraft envelope, color envelope, pearlescent envelope, metallic envelope, printing ...