Sound insulation materials; Latex, rubber; polyurethane foam; insulating materials; semi-processed plastic materials; padding materials of foam, rubber, latex or plastic; products made of polyurethane foam, including blocks, boards, sheets, cut and profiled pieces for use in further manufacturing; products made of plastics, packing, stopping and insulating materials, filtering materials (semi-processed plastics or foams); products made of semi-finished plastic materials; plastic materials and...