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Cable trunking systems and cable ducting systems for electrical installations. Part 2-3. Particular requirements for slotted cable trunking systems intended for installation in cabinets
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Integrated circuits. Terms, definitions and letter symbols of electrical parameters
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Radius of spherical surface of optical components. Series of numerical values
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Fluorescent induction lamps. Safety specifications
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Carbon and low-alloy steel butt-welding fittings. Tees. Design
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