Standard input-output norms require imported polyisocyanate inputs to match prescribed component proportions and be used in export production.

Standard input-output norms prescribe authorised input proportions for Polyisocyanate (H431), listing constituent inputs and their weights for a one kilogram output. Applicants must adhere to the prescribed input mix for the declared export product and ensure that goods sought for import and actually imported are those used or required in the export product; compliance with the specified input-output mix is a condition of import authorisation and export usage verification.

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