TYPE-C-31-M-19 TYPE-C-31-M-19A TYPE-C-31-M-20 TYPE-C-31-M-21 TYPE-C-31-M-22 TYPE-C-31-M-23 TYPE-C-31-M-25 TYPE-C-31-M-26 TYPE-C-31-M-26A TYPE-C-31-M-27