1) Bosun Cast Steel Shot 2) For shot blasting / peening machine 3) High quality 4) Long durability 5) High strength Product Introduction(ISO9001)BOSUN cast steel shot is professionally manufactured by Shanghai Bosun Abrasive Co., Ltd in china mainland.Size: S70,S110,S170,S230,S280,S330,S390,S460,S550,S660,S780Diameter: 0.2mm,0.3mm,0.5mm,0.6mm,0.8mm,1.0mm,1.2mm,1.4mm,1.7mm,2.0mm,2.5mm Hardness: 40 ...