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Yuyao Tongchuang Thermal Insulation & Sealing Factory Our company is one of the leading manufacturers of various insulation materials and products in Ningbo, China and is one of the earliest production enterprises of refractory, heat insulator and sealing in China. We have 20 years of experience mainly in producing yarn, rope, tape, cloth, packing, sleeving and other sealing products with materials of ceramic fibre, glass fibre, basalt, asbestos, TPTE, graphite and so on.公司档案