Aramid sewing thread for firefighting clothing 1.Ne203,303,403 2.200g per cone 3.various colors 4.similar to ... sewing thread for firefighting clothingDescriptions: 1) Composition: 100%meta-aramid.2) Specification: Ne203, 303,403 ,402etc.3) Color: black,blue ... meta-aramid sewing thread is mainly used in sewing the filter bags, protective clothing, FR decoration, high temperature resistant products, etc. ...