... alkali,acid,salt,heat and abrasion SpecificationsBag closing thread is made of 100% polyester yarn that ... alkali,acid,salt,heat and abrasionOur bag closing thread application:- Widely used for many brands of ... for making Filter Fabric, Canvas, Ropes, Webbing, Core Thread for Zipper, etc Standard Specification: - NE 20/6 ... cone - From 1 kg to 8 kg weight C) Other length or weight of thread are also ...