... Longgang District, Shenzhen City, Guangdong , China Huacheng PackagingAvailable styles three-side sealed bag,zipper stand up bag,mid-botton or back ... sealing bag,self-sealed bag,film,side-gusset bag,spout top composite bag,ziplock bag or ... prefesional and packing factory(Huacheng Packaging material which engage in valve coffee sachet) and enjoy a high reputation in printing and ...