Electric, thermal and acoustic insulators; General purpose silicone rubber sealant; Gutta-percha; Insulated pipe supports; Insulating materials; Insulation materials, namely, composite sheets and panels comprising a reinforced cement core mechanically bonded to steel sheets on both outer surfaces for use in barriers, doors, ducts and ceilings; Material for thermal insulation and fire protection, namely, fire-resistant composite panels made of aramid, glass, carbon or ceramic fibers; Packing and insulating material; Packing material for forming seals, namely, silicone rubber, gutta-percha, india-rubber and balata; Pipe insulation; Rings of rubber for use as pipe connection seals; Rubber bars and rods; Rubber cords and laces; Rubber derivatives; Rubber for use in the manufacture of composite sheets, plates, rods, cords, tapes, profiles, sealing rings and gaskets; Rubber sealant for caulking and adhesive purposes; Rubber sheets; Rubber sleeves for protecting parts of machinery; Rubber solutions; Rubber tubes and pipes; Sealing and insulating materials; Sealing plugs made primarily from rubber; Silicone rubber; Structural insulated construction panels; Synthetic rubber; Synthetic rubber for use in the manufacture of composite sheets, plates, rods, cords, tapes and profiles; Raw or semi-worked rubber