DW-20-12-T-D-500 DW-20-12-T-D-530 DW-20-12-T-D-550 DW-20-12-T-D-550-LL DW-20-12-T-D-555 DW-20-12-T-D-571 DW-20-12-T-D-600 DW-20-12-T-D-625 DW-20-12-T-D-627 DW-20-12-T-D-640