... .Applications scope: a. House furnishing products: tea set, bowl and plate, plastic, glass, sofa, leather shoes, sports shoes, wall, floor, switch ... tile, closes tool, etc.d. Ironware: tap, finger bowl, vegetable plate, pendant, handles, etc.e. Office supplies: computer, telephone, fax, copier ... ok,do not use the acidic bleach. Nano melamine sponge foam