... used for tailoring, trousers, jacket, medium, heavy fabricb) (20s/2), (20s/3): used for jeans, upholstery PVC bags, canvas, ... footwearc) (40s/2) for shirts, jackets, pants, 20/2, 20/31) 20/2, 2000yards/3000yards/2000 meters/3000meters2) 20 ... is a professional manufacturer with years of exprort experience.A full range of products, with good quallity and competitive price. Worldwide ...