Input-output norms define admissible inputs and require exporters to ensure imported materials match export product use. Standard Input-Output Norms set admissible inputs and their proportions for Powrah/Hoe/Pick-axe and similar tools made of non-alloy or alloy steel, with or without handles of PP, FRP, fibre glass covered with polypropylene, or wood. The SION lists primary metal inputs (rounds/billets/plates/coils) and ancillary inputs (epoxy powder, roving glass, resin, polypropylene, relevant wood blanks) with stipulated per-product content weights, notes applicability of certain inputs to specific handle types, and records that the entry is suspended. Applicants must ensure imported goods are those used or required in the export product.