Qingdao Wansheng Plastic Product Co., Ltd. is a leading manufacturer of packaging materials as well as finished packaging products in Qingdao. Our core products are flat bags, zipper bags, stand-up pouches, retort bags, al foils, gusset bags, die cut bags, t-shirt bags, garbage bags and so on. We can add accessories like zip-lock, one-way valve, matte or varnish finish, tear notch, laser score-line, hang-hole, easy open lip, round corner, tin-tie, etc. as per clients' requirements. ...