Masterbatch, Plastic Products, Plastic Film manufacturer / supplier in China, offering High Temperature Resistant Polyurethane Sponge Strips Backing Rod for Building Filling Gaps 15mm X 2m Roll, Density 15– 50 Kg/M³ Closed-Cell Foam Strip Rod Anti-High Temperature for Soundproofing and Vibration Damping Construction Backing Rod, Gap Filling EPE Foam Closed Cell Backer Rod Polyethylene Foam Backing Rod and so on.