Dear Sir, Good Day!! This is Effat Ara From Bangladesh. We are looking for Digital Input Card with following Specifications: Digital Input Card SM 321,DI 16*DC24V,321-1BH02-0AA0 Siemens,Germany Digital Input Card SM 321,DI 32*DC24V,321-1BH02-0AA0 Siemens,Germany Digital I O Card SM 323-1BL00,DI16 DO16 Siemens,Germany