... steel , High Alloy steel , Cast Iron , M.D.F 2. FEATURE High Strength, Heavy Duty Removal, Good 1. APPLICATIONStainless steel , High Alloy steel ... , Cast Iron ,Steel , normal steel , M.D.F2. FEATURE High Strength, Heavy Duty Removal, Good Toughness,3. MATERIAL :ZA---ZIRCONIUM VSM ... ,60,80FDA180850010 / 200 flap disc /flap wheel double page SBS support for Stainless steel