打开牢房清洁的海绵

1.polyurethane foam material 2,reticulated, mesh,10ppi-70ppi, could offer open cell and closed cell 3 good resilient, good air permeability (95%) Tensile strength kpa ≤ 100 elongation percentage % ≤ 90 Tearing strength N/CM ≤ 10 4 could keep the colour for long term 5 widely used in aquarium filter ,water filter ,air filter ,water pump,medical machine.cleaning dish ,kitch.ect. 6 function :UV-protection , bacterium-proof, dust-proof, mildlew-proof,environemental protection , no toxic,absorptiong noise, stand certain press, high air permeability , not easy to change the shape , durable, have long life and low cost