fiber glass E-glass or C-glass Fiberglass yarn Tex: 50~272 tex Bobbin yarn: 4kg /bobbin E-glass or C-glass Fiberglass yarn, Using glass yarn ball ... has the properties of insulation, fireproof, softness, high strength, corrosion resistance, heat resistance and high moisture absorption. It is a necessary raw ... (μm): 9, 11, 13Tex: 50~272 texBobbin yarn: 4kg /bobbin fiber glass 4kg bobbin yarn