... 2.Warm/Cold storage 48 hours 3.Food-grade environmental material Detailed Product Description 1 ... 35 hours when cover the lip.3.Food-grade environmental material,non-toxic,non-rotten ... and box-body,and high sealing.5.have widely use in human life,such as,food and beverages for sport,fishery,fast food ... ,medcine, ,shopping portable,and so on. ItemFL ...