Input-output norms govern permitted input proportions for Switch Fuse Unit imports and require use verification in exports.

Input-output norms for Switch Fuse Unit require CRCA or GP steel sheets/coils at 1.05 kg per kg of steel content and copper wire bars/strips at 1.01 kg per kg of copper content in the export product; applicants must determine input proportions, ensure imported goods match required inputs, and verify actual use of imported inputs in export manufacture.

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