Standard input-output norms for cathodes and heaters govern import eligibility and require imported inputs to match export manufacturing needs.

Standard Input Output Norms prescribe specific component types and standard quantities for cathodes and heaters used in colour CRT manufacture, listing nail cathode with sleeve and cap, cathode coating suspension, aluminium oxide powder, tungsten powder and tungsten rhenium wire. The provision is suspended by Public Notice No. 03/2024-25, and applicants must ensure imported goods correspond to the inputs actually used or required in the export product, with authorities determining allowable proportions of inputs for different resultant products.

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