Material processing, namely, contract manufacturing for third parties in the field of insulation and sealing materials in the nature of blocks, plates, sheets, strips, profiles, punched, stamped, formed and milled pads of homogeneous, cellular and porous materials, in particular of rubber, foam rubber gum, polyethylene, cellular polyethylene, foam rubber, foam silicone, sponge rubber, soft rubber, polyurethane foam and foamed materials of plates for acoustic insulation, of filtration prod act...