... design 2)food grade,SGS FDA 3)high quality material 4)various bag types Customized frozen food packaging :1)Moisture proof ... and use,3)Strong sealing strength,non-breakage,non leakage,4)Heat sealing the sides edge,colorful and vivid printing,5 ... ,K-seal,R-bag,Lidding film,Shrink Sleeve,film in roll form,Special shape PrintingGravure reverse printing,up to 10colors,max width ...