... strength,high resistance to alkali,acid,salt,heat and abrasionOur bag closing thread application:- Widely used for many brands of ... (Stationary & Portable) - Sewing of multi-wall paper bag, PP woven bag, jute, Gunny, Hessian and Bulk Bag (FIBC), etc. - For packing Fertilizers, Feed meal ... feel free to contact us for more details. 100% polyester bag closing thread