... box gift box jewel case and ect.Equipment specifications:1) Bulk density: 180-230gsm2) Substance: 100gsm=0.12mm3) Machine width: 2,640 ... ,offset printing and bronzing1) Thickness: 100gsm=0.12mm (+_5%)2) Bulk density: 0.7-0.75gsm3) Burst index: 3.51-2.41kPa ... of surface absorbing: 60-65gsm6) Smoothness: 12-15S7) Regular weight: 80, 110, 150, 200, 230, 250, 285, 320, 350, 400, 450gsm ...