Scraping platform in the grinding process there is a tablet containing a silicon carbide abrasive scrub on the form, in this form is essential in research with the main tool, called the study with embedded sand flat. Scraping platform with the organization uniform, compact structure, no blisters holes, loose and other defects. on the sand easy, uniform distribution of sand-rich, strong cutting sand firmly embedded in the surface smooth, shiny, sky-blue, good wear resistance. scraping platform uses: measuring the manufacture, repair, grinding parts, precision mechanical parts production, processing and optical instruments. Scraping platform size: 100 * 200.200 * 200.250 * 250.300 * 300.400 * 400 scraping platform features: 1. Simple, fast on the sand, embedded in sand and quantity, is still very easy to use, on the same type of sand, polished, the finish significantly improved .2. easy to get a higher volume of block needed to study together and finish of the workpiece glossy green light .3. flat and durable, cutting and long-lasting enough, after the sand is still mild I. good cutting, smooth feeling when pushing research. 
 http://www.knzzlj.com/ztpt/bzv.html