[질문] 흑색화약 만드는법..

질산칼륨75%,황15%,목탄10%인데,각각40∼80%,3∼30%,10∼40%의범위로배합하면폭파약용에는이것을물로적셔나무로만든통속에서회전·진동을주어입자상태로만든