... guns Material:AISI1008-1015,AISI1055-1085 Grade:G100-G1000 size:4.5mm,5.5mm,6.35mm \ Production name Steel balls / pellets (BBs) for ... air gunssize4.5mm,5.5mm,6.35mmGradeG40,G100,G200,G500,G1000,G2000HRC58-62hrcQuality certificateISO 9001 ... of loadingQING DAO/TIANJIN/output per yearmore than 5000ton/year 4.5mm quality pellets (BBs) for air guns