Kunshan Zhongya Insulation Material Co., Ltd. has advanced technology. Our soft heat-insulation materials are made of first-class NBR and PVC as well as various high-quality auxiliary materials. Continuous foaming technique is adopted in our production. The features of our materials are heat insulation/preservation and voice absorption. NBR, PVC and rubber/plastic foaming insulation materials are widely used in the ventilation system and water supply system of buildings. Our products ...