... 10 colors quality printing 4. 10 years rich experience in plastic bag LongDa Packaging Material Co., Ltd. (http://www.longda-pack ... .com) specialized in manufacturing all kinds of plastic packaging bags. With 10 years’ rich experience, we ... most professional supplier in China. Detailed product information: Name Zip plastic bagOriginHebei, ChinaMaterial LDPE, PA, PET, MAT-OPP, PEARLITE-OPP ...