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APA Citation
Institution,, B. S. (2023). BS EN 4013. Aerospace series. Shank nuts, self-locking, in heat resisting nickel base alloy NI-PH2601 (Inconel 718), silver plated. Classification. 1 550 MPa (at ambient temperature) / 600 °C.. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100172079832.0x000001