A.10~12 B.12~14 C.16~25 D.30以上
A.5~10 B.10~15 C.15~20
A.0.2m B.0.8m C.1.2m
A.1% B.<2% C.2~4% D.5%
A.淺孔爆破 B.深孔爆破 C.峒室爆破 D.藥壺爆破