Ultrasonic process, 80 grams of non-woven fabric, the weight of this bag should be about 35 grams, 90 grams is about 39 grams of the sewing process, 80 grams of non-woven fabric, about 40 grams, 90 grams of non-woven fabric 45 About grams. This is the weight without printing, if there is printing weight, it will increase a little. Because ink also has weight. Of course, if you choose other non-woven fabrics, you can do the calculations yourself.
