4-531-2107A Siemens Description Description Siemens Siemens CNC Control Card Related products SIEMENS 1FK7022-5AK71-1DA0 SIEMENS 1FN1910-0AA20-1AA0 SIEMENS 1FK6042-6AF71-1TH0 SIEMENS 1FN3050-4SA00-0AA0 SIEMENS 1FT5072-0AC01-1-Z SIEMENS 1FK7042-5AK71-1FB0