Standard Input-Output Norms restrict import inputs for presensitized negative offset aluminum plates and require matching imports to export use. Standard Input-Output Norms prescribe allowable imported inputs and their proportions for Pre Sensitized Negative Offset Aluminum Plates (Export item C2047), listing specific importable inputs and fixing quantitative relationships between export product and inputs; one input category is permitted within a capped proportion of the export's FOB value, and the entry reflects suspension by a later public notice.