... used for blast cleaning of shot blasting machine, steel pre-treatment, steel structure. Steel Shot Specs: S70, S110, S170, S230, S280, S330, S390, S460, S550 ... to increase elasticity and toughness.Steel Grit Specs: G10,G12, G14, G16, G18, G25, G40, G80Steel cut wire Shot Sepcs: 0.8mm, 1 ...