... Foil Coffee Bags With Vavle 1.Foil Coffee bag with zip 2.Food grade 3.Size,thickness,print customized 4.1oz ... can print any color,also customers logo as your artwork .zip top,tear strip3 layer with foilCan be with vavle or not ... sealing bag,self-sealed bag,film,side-gusset bag,spout top composite bag,ziplock bag or speical shaped bag printing Up ...