CHANGHAI.CHANGHAI was established in May 2000 with its headquarters located in Changzhou City, Jiangsu Province, and a registered capital of 90 million yuan. The company is a high-tech enterprise integrating glass fiber production, deep processing of products, and composite material manufacturing. CHANGHAI currently operates over ten domestically leading glass fiber product production lines equipped with comprehensive testing facilities, enabling the production of various specifications of glass fiber products to meet the needs of domestic and international customers. Currently, the company has developed a core product portfolio centered on specialty felts, including chopped strand mats, wet-laid glass fiber mats, composite separators for batteries, and coated glass fiber mats. End-users span major industrial sectors such as automotive manufacturing, building materials and decoration, road transportation, and petroleum pipelines. CHANGHAI holds ISO9001 and ISO14001 certifications. Key products include: glass fiber yarn, glass fiber products, thermoplastic glass fiber and products, glass fiber for wind power and photovoltaic applications, chemical series products, chopped strand mats, wet-laid glass fiber mats, composite separators for batteries, and coated glass fiber mats.