Four-row mounted disc harrow BDM series model BAN-5,6x4 Trailed four-row disc harrow BDM model BD-4,6x4 Trailed folding four-row disc harrow BAMS-5x4 series Trailed four-row disc harrow, four-row disc harrow, trailed, single-frame, PM series, model ??? ??-3,3?4 Trailed four-row disc harrow BDM model BD-3,7x4 Trailed four-row disc harrow, four-row disc harrow, BDM series, model ??? ??-4,2?4 Trailed folding four-row disc harrow PM series model BPM model BPMS-7,4x4 Trailed folding four-row disc harrow of PM series model BMC-10x4 Four-row mounted disc harrow BDM series model BAN-4,6x4 Trailed four-row disc harrow BDM Series trailed disc harrow, BDA-2,8x4 model Four-row mounted disc harrow BDM series model BDN-2,8x4 Trailed four-row disc harrow BDM series trailed disc harrow, BAM-3,3x4 model Trailed folding four-row disc harrow of BDM series model BAMS-6x4 Trailed folding four-row disc harrow PM series model BPM model BPMS-9x4 Trailed four-row disc harrow BDM series, trailed on a single frame, model BPM-2,4x4 Trailed four-row disc harrow BDM series trailed disc harrow, BAM-5x4 model Trailed four-row disc harrow, four-row disc harrow, BDM series, model ??-5,6?4