1.aluminum foil coffee bag, side gusset coffee bag 2.coffee bag with tin tie and stand up 3.bottom gusset and degassing valv Aluminum Foil Coffee Bags With Vavle 1.Foil Coffee bag with zip 2.Food grade 3.Size,thickness,print customized 4.1oz-10 LB Stand Up Aluminum Foil Coffee Bags With Vavle blue,red,purple outstanding shiny foil bag,we can print any color,also customers logo as your artwork . ...