... fireproof product, Fiberglass packing set are made of resisting high temperature and high intensity ... chemical industry, machine, etc.Other usage are sewing of high temperature resistant weave, electricity insulating material, heat ... voluble electrothermal thread, and heating elements. Main sorts of prduct:1. fiberglass square strandSpecification:3.0mm~50mm ... 350°C~1000°C4. all kinds of packing set