china Sandong chunlong group Packing Material Co., Ltd established in1997, which is located in a famous industrial district---longkou city shandong province china.The products we specially develop and manufacture are packing materials, including printed bag, Laminated Bag, Ziplock Bag, Self-adhesive Bag , mailingbag, food packaging bag, film roll, washing powder bag, cat litter bag, sea food bag and so on, They are made from PP, HDPE, OPP, PET, PA