About Shanhai packaging Co., Ltd We are a professional manufacturer specializing in the plastic bags, such as stand up bag, zipper bag, food bag, pet food bags, side gusset pouch, coffee bag, retort pouch, spout bag, laminate film, shrink sleeve. And PVC/PET/OPS heat shrink labels, and plastic lamination packaging and lamination materials. always aims to supply fine quality competitive price products and entirely satisfied service for our clients. www.ysshpackaging.com