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Top Sealing, belonging to Tenglong Sealing group since 1979, is a professional manufactory of sealing and thermal insulation products, including high quality gland packing, sealing gasket, graphite composite sheet, fiberglass product, ceramic fiber product and other Sealing & thermal insulation products. The factory specializes in the production of seal and thermal insulation products for more than 40 years. We have rich experience, advanced technology and equipment, and has a modern professional factory building of 12000 M2 and a professional technical group. It is managed in strict accordance with the ISO9001:2008 standard and provides customers with high quality products and services. The products are exported to more than 200 countries and regions, and enjoys good reputation at home and abroad.