Packing sponge for products protecting: (1)Specialized in the production for 20 years. (2)Own ... facotry. (3) pass SGS,ROHS test Packing sponge for products protecting:Products are widely used in the fields of chemistry, sanitary ... , aquarium, autos and motors, sewage and petroleum treatment for filtering, protecting, decorating, straining, cleaning and others. Features: (1) color: various color ...