Can also be for other packaging products.Vacuum automatic vacuum packaging machine. (Not suitable for Gas Nozzle type of machine).Material: PE+PASmooth, with fine grain. Advanced food grade packaging bag, can be high temperatureResistance to freezing, can withstand the change of temperature and warmprotection of the green environment, you can cut the mouth of the sealed bag,Metal . Could very well try to put them in a vacuum. Stay cool. One side isGrain bag is a side pressure lines, the other side of the good Clean and reusekeeping the weather fresh, keeping the smell, cut, easy to use2 x Roll Food Storage BagsColor: whiteSteam, can be placed in the microwave oven heating, suitable for the vacuum packaging of food,can be for vacuum packaging, packagingSize: 28 × 500CM / 11× 197 inchWhen in use, please do not put the sharp diamond items, avoid scratching the plastic wrapVacuum bag, suitable for all vacuum at home and abroad, the principle