... melamine sponge for excellent cleaning effect wihtout extra detergent 3M clean padThis floor cleaning pad is by melamine sponge for excellent ... extra detergent. It attaches to hi-speed polishing machine to clean and polish floor in hotel, conference hall, hause, office etc ... on the floor, firstly use the abrasive green surface to sweep the dirt, smutch, stain etc., then put on the white ...