... optional, PE or CPP/PET/AL, PE /OPP, matte CPP/PET/OPP, PE/PET/OPP, CPP or PE/PET/BOPP, PE/PA, RCPP ... : three-side seal bag (with zipper or not), side-gusset bag, back sealed bag, central seal bag, OPP header bag, stand-up bag (with zipper or not ... . product process: printing cylinder making, printing, lamination, separating and cutting, bag making , checkout. Our primary aim is to assist our customers ...