... , , heavy fabric, etc. a) (60s/2), : used for shirts, blouses, lingerie, light weight fabrics b) (60s/3), ... (40s/3): used for tailoring, rain wear, shirt, blouse, sports wear, knitwear, ... quilts c) (40s/3): used for tailoring, trousers, jacket, medium, heavy fabric d) (20s/2 ... 5000y/10000y the length as customers request.. Polyester Sewing Thread