DW-50-20-F-T-400 DW-50-20-F-T-450 DW-50-20-G-D-1020 DW-50-20-G-D-200 DW-50-20-G-D-368 DW-50-20-G-D-400 DW-50-20-G-D-450 DW-50-20-G-D-485 DW-50-20-G-D-500 DW-50-20-G-D-580