... chips, nuts, vegetable seeds, fried pork flakes, dried meat and other dry goods, but also kept MSG, salt, ... of lids to be options: tinplate, EZ open and, plastic lid+ peel off membrane, paper lid, ... easy to recycle, reduce cost, easy to open and close, etc.5: Environment-friendly: using environment-friendly ... also can't have adverse consequences for soil and environment.6: High oxygen/ moisture proof.7: ...