... stastic.. 2.Customised size and shape. 3.Eco-friendly. Open Cell Flexible Sponge :Product property:1. It's made ... from polyurethane foam ,open-cell product.2. High cost-performance3. Can be cut ... club, ballroom, hospital, office building, recording room, studio, industrial workshop,electrical and mechanical equipment, aerospace, metallurgy, machinery, medical equipment, ...