Founded in 2002, Chengdu Chang Yuan Shun Co., Ltd. (CYS®) specialized in Fiberglass yarn/ roving, mat and fabrics. As an important part of our business, CYS also dedicates in developing thermal insulating Silica fiberglass materials. Depended on continued innovation and meticulous working of our employee team, our factory has emerged as one of the leading manufacturer in this subdivision field of High Silica fiberglass and Silica glass fiber.