... valve covers, welding curtains,etc Glass Fiber Fabric with Heat Treatment, Thicker, Heavier and Stronger, Provides Better Durability Light and ... uneven surfaces and equipments. Used extensively in ship fabrication/repairs, oil/gas, petrochemical/metal construction industries where heat insulation, insulation ... 3mm, with different width. Weaving: plain, twill, satin Heating treatment glass fiber cloth