tea bag filter paper 1. Used for packing tea, coffee, chinese medicine,etc. 2. SGS, ... heat seal 4. food grade tea bag filter paperOur factory specially produce food grade tea bag & coffee filter paper which ... and nice heat seal performance, suitable for packing tea, coffee, herbs, condiment and other powder/granules ... ,160mm, etcCoffee powder capacity for bags:One bag can serving 3-7 grams, it can also ...