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District heating pipes. Bonded single pipe systems for directly buried hot water networks. Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene. Original standard BS EN 448-2025 in PDF full version. Additional info + preview on request

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Aerospace series. Non-metallic materials. Anaerobic polymerisable compounds. Threadlocking. Torque strength 2 Nm. Original standard BS EN 4488-2013 in PDF full version. Additional info + preview on request

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Specification for dedicated liquefied petroleum gas appliances. Domestic flueless space heaters (including diffusive catalytic combustion heaters). Original standard BS EN 449-2002 + A1-2007 in PDF full version. Additional info + preview on request

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Aerospace series. Non-metallic materials. Anaerobic polymerisable compounds. Threadlocking. Torque strength 16 Nm. Original standard BS EN 4491-2013 in PDF full version. Additional info + preview on request

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Aerospace series. Non-metallic materials. Anaerobic polymerisable compounds. Threadlocking. Torque strength 19 Nm. Original standard BS EN 4492-2013 in PDF full version. Additional info + preview on request

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Aerospace series. Inserts, screw thread, helical coil, self-locking, in heat resisting nickel base alloy NI-PH1801 (NIP96HT, Nimonic 90), silver plated. Original standard BS EN 4493-2008 in PDF full version. Additional info + preview on request

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