BHC-4A-20-240-M BHC-4A-20-277-D BHC-4A-20-277-DM BHC-4A-20-277-M BHC-4A-25-024-D BHC-4A-25-024-DM BHC-4A-25-024-M BHC-4A-25-120-D BHC-4A-25-120-DM BHC-4A-25-120-M