铸钢丸系列Steel shot series
S780=ss2.5 S660=ss2.0 S550=ss1.7
S460=ss1.4 S390=ss1.2 S330=SS1.0
S280=ss0.8 S230=ss0.6 S170=ss0.5
S110=ss0.3
铸钢砂系列Steel grit series
G10=SG2.5 G12-SG2.0 G14=SG1.7 G16=SG1.4
G18=SG1.2 G25=SG1.0 G40=SG0.7 G50=SG0.4
G80=SG0.3 G120=SG0.2