CHANGHAI.CHANGHAI Company was established in 2000 and is headquartered in Changzhou, Jiangsu Province. As a high-tech enterprise specializing in glass fiber and composite materials, the company integrates glass fiber production, deep processing of products, and composite material manufacturing. It operates over ten domestically leading production lines and maintains a comprehensive quality inspection system. Its core product portfolio includes multiple specialty felt series such as chopped strand mats, wet-laid thin mats, battery composite separators, and coated felts. These products find extensive applications across industrial sectors including automotive manufacturing, building materials and decoration, road transportation, and petroleum pipelines. Certified under ISO9001 and ISO14001 management systems, CHANGHAI is committed to providing global customers with high-quality glass fiber products in diverse specifications to meet the multifaceted demands of various industries.