INTRODUCTION: Operative Standards: In accordance with standards of GB/T18838.3－2008 Steel Shot and Steel Grit,SFSA20-66Cast Steel Abrasive, SAE J827 Cast Steel Shot, SAE J1993High Carbon Steel Grit, YB/T5149-1993 Cast Steel Shot, YB/T5150-1993Cast Steel Grit,ISO11124-3High Carbon Cast Steel Shot and Grit. Application: Blast cleaning of cast steel grit:Used for blast cleaning of casting, die-casting, forging, sand removal of casting, steel plate, H type steel, steel structure. Rust removal of cast steel grit:Rust removal of casting, forging, steel plate, H type steel, steel structure, descaling of?forging. Shot blasting of cast steel grit:Shot blasting of profile steel, ship board, steel board, steel material. Shot blasting of cast steel:Shot blasting of steel board, profile steel, steel structure. Pre-treatment of cast steel grit:Pre-treatment of surface, steel board, profile steel, steel structure, before-painting.