S390 / S460 / S550 ST Series Steel Shot are large-size secondary-quenched steel shot abrasives used for heavy-duty shot blasting and strong surface cleaning. With high impact force, improved wear resistance, stable particle structure and lower dust generation, S390 ST Series steel shot, S460 ST Series steel shot and S550 ST Series steel shot can efficiently remove rust, oxide scale, sand residues and surface contaminants from large and thick metal workpieces. They are suitable for large castings, steel structures, thick steel plates, heavy forgings, machinery frames, welded components and protective coating preparation.
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