Standard input-output norms govern allowable imported inputs and require verification that imports are used in export products.

Standard input-output norms set permissible imported inputs for manufacture of stainless steel coupling/tees/elbows (SION C349) and related engineering products, specifying one metric tonne for stainless steel coupling/tees/elbows, one and a half metric tonnes for alloy steel bars/rods/plates/billets/blooms, and consumables permitted up to two percent of FOB export value; schedules determine input proportions for resultant products and applicants must ensure imports are those actually used or required in the declared export product.

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