chemical composition：
Hardness:
As produced:~310HV
Operating mix:~420HV
Nominal Shot Size
FSG 直径(mm)
FSG-10 0.1~0.2
FSG-15 0.15~0.25
FSG-20 0.2~0.3
FSG-30 0.3~0.4
FSG-40 0.4~0.5
FSG-50 0.5~0.6
FSG-60 0.6~0.7
Special screenings available upon request
