material:al foil laminated film rolls usage :snack ,candy etc color:1-12colors ... OPP,CPP,VMCPP,PE,AL,PA., Kraft paper etc.2,Sealing:3-side seal,quad-seal,back-seal,K-seal;3 ... main product :complex color bags, PE bags, vests bags, aluminum foil bags, and all kinds of plastic vacuum bags, volume film ...