SD22D bulldozer yog siv rau kev tsim kho kev lag luam hauv chaw ua haujlwm hauv Northern Africa.SD22D suab puam bulldozer yog nruab nrog peb-theem kev lim dej thiab txuas ntxiv bogie kom ntev lub neej thiab txhim kho lub tshuab kev lag luam.
