https://blog.gongquiz.com/2022/12/02/%ec%a7%80%eb%a6%84%ec%9d%b4-150mm-%ea%b8%b8%ec%9d%b4-800m%ec%9d%98-%ec%88%98%ed%8f%89%ea%b4%80%ec%97%90-%eb%b0%80%eb%8f%84-950kg-m3-%ec%a0%90%ec%84%b1%ea%b3%84%ec%88%98-0-75kg-%ec%86%8c/