Input-output norms require specified aluminium input ratios for helical fittings and mandate importers ensure inputs match export products.

Standard Input-Output Norms for Aluminium Helical-formed fittings (SION C19) specify permitted source inputs (Aluminium Ingot or Aluminium Scrap) with defined input-to-output ratios and note suspension by a Public Notice. Applicants/importers must determine and adhere to permissible proportions of inputs and ensure imported goods correspond to the inputs used or required in the declared export product, creating a verification obligation.

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