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District heating pipes. Bonded single pipe systems for directly buried hot water networks. Factory made pipe assembly of steel service pipe, polyurethane thermal insulation and a casing of polyethylene. Original standard BS EN 253-2019 + A1-2023 in PDF full version. Additional info + preview on request

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Aerospace series. Vacuum deposition of cadmium. Original standard BS EN 2535-2022 in PDF full version. Additional info + preview on request

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Hard anodizing of aluminium alloys. Original standard BS EN 2536-1995 (1999) in PDF full version. Additional info + preview on request

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Aerospace series. Steel X7CrNiAl17-7 (1.4568). Air melted. Solution treated and precipitation hardened. Sheet and strip. a <= 6 mm. 1 240 MPa <= Rm <= 1 450 MPa. Original standard BS EN 2540-2018 in PDF full version. Additional info + preview on request

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Aerospace series. Steel FE-PA18. Quenched and cold drawn. Wire for spring. D < 4,0 mm. Original standard BS EN 2541-2018 in PDF full version. Additional info + preview on request

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Aerospace series. Steel FE-PL1502 (25CrMo4). Annealed. Bar and wire. De <= 40 mm. For prevailing torque nuts. Original standard BS EN 2542-2008 in PDF full version. Additional info + preview on request

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