... 4.port:Shanghai 1.material:quartz sand,silicon carbide,brown aluminium oxide,craft paper,color paper or latex paper2.payment:L/C,T ... uniform grain size and kneen,great sharping ability and everlasting abrasive resistance.6.application:automobile,furniture,electrical household appliance,mechanical accessory ... size and color can be customized. 230*280 waterproof silicon carbide abrasive paper