Standard input-output norms restrict permissible inputs for electrical actuators, requiring declared input ratios and use-only imports.

Standard input-output norms for Electrical Actuators for Electrical Switches (C151) specify permissible inputs and proportion limits: specified polymers at 1.05 kg/kg where noted, zinc alloy ingot at 1.05 kg/kg, brass strip at 1.33 kg/kg, brass rod at 1.1 kg/kg, diodes and resistors on a net-to-net basis, and silver epoxy/epoxy resin together limited by CIF to 1% of FOB. Applicants must ensure imported inputs are those used in the export product and determine proportions required for manufacture.

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