Product Description The most advanctage of our products is low abrasion and it can reduce your cost and long-term efficient using time.Ratter loss,use centrifugal finishing machine,185rpm/min,in 30 min, Application1, To remove sticking matter from surfaces 2, To decrease the coefficient of friction 3, To make surfaces clean 4, To obtain smooth surfaces and improve the aesthetic quality 5.Radiusing,Deburring,Derusting,Surface smoothing,Degreasing,Cleaning before plating or chemistry,finishing and polishing for instrument and others.ERAMIC ABRASIVE STONE TECHNICAL DATA SHEET:sizes of filler;70# ,90#,120#,150#,180#,W50#,W20#,W5-0# Bulk Density:?2.5g/cm3 Water Absorption;