Taicang food vacuum | vacuum retort | cooked vacuum-packed bags of our vacuum bags material is divided into two: one is ordinary vacuum bag, expressed as: PET (polyethylene terephthalate) + PE ( polyethylene) Another nylon vacuum bag, expressed as: PA (polyamide) + PE (polyethylene), the two materials can be evacuated, our product transparency, good moisture waterproof effect, oxidation resistance to puncture strong, sealing, and not aging characteristics, when if you buy a vacuum bag, found that the surface look the same, there are differences in price, please do not be surprised, because different materials, nylon vacuum bag vacuum than the average price Some high-bags, some of better quality, we plant implemented according to the amount of pricing, a large quantity can enjoy more benefits, more surprises waiting for you polyethylene plastic bags, plastic products, the amount of the largest and most important materials, is currently the world the best materials in contact with food bags, food bags on the market generally is made of this material. Polyethylene light and transparent, with the ideal moisture, oxidation, acid and alkali, heat sealing and other advantages, and non-toxic, tasteless, odorless, food packaging hygiene standards. Second, PVC / PVC, is second only to polyethylene plastic world's second-largest species, are plastic bags, ideal for PVC bags, composite bags, vacuum bag to be used for books, folders, Ticket and other cover packaging and decoration.