1) Steel Grit 2) For surface cleaning, rust removal, peening, finishing 3) High quality 4) Long durability 5) ISO 9001 LuHuan cast steel grit is professionally manufactured by Wuxi LuHuan Co., Ltd in china mainland, with 23 years' experince in abrasive field.Size:G10,G12,G14,G16,G18,G20,G25,G40,G80,G120Hardness:42-64HRCDensity:7.6g/cm3 UsageSurface cleaning and rust removing for cast iron, cast ...