1)plastic rice bag,ISO,QS,FDA,EEC 2)security,unti-puncture ... oxygen & light, airtight, non-leakage, anti-puncture, strong sealing 2)Valve available for option3)Realistic & lively print effect help upgrade the ... hour by plane from Hong Kong or Guangzhou)Business lineFlexible plastic packaging for food, daily & chemical commodity and medicineContactAttn:Lisa FengMob ...