... . Our raw material: imported materials (long fiber pulp, hemp, etc) heat sealing fiber, and all of the food is high5 ... . Heat sealed type heat sealing fiber replaced surface coating adhesive: health standards and high ... , 120mm, 125mm, 132mm, 140mm, 145mm, 160mm, 180mm, 200mm, 220mm. Non-heat sealable teabag filter paper