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Aerospace series. Flange couplings. Weld coupling, 90° elbow, in heat resisting steel. Inch series. Original standard BS EN 4807-2017 in PDF full version. Additional info + preview on request

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Aerospace series. Flange couplings. Weld coupling, 90° elbow, in nickel alloy. Inch series. Original standard BS EN 4808-2017 in PDF full version. Additional info + preview on request

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Aerospace series. Flange couplings. Gasket seal with fluorocarbon seal on aluminium plate with 3 fastening holes. Inch series. Original standard BS EN 4809-2017 in PDF full version. Additional info + preview on request

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Workplace atmospheres. Size fraction definitions for measurement of airborne particles. Original standard BS EN 481-1993 (1999) BS 6069-3.5-1993 in PDF full version. Additional info + preview on request

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Aerospace series. Flange couplings. Gasket seal with nickel alloy C seal on heat resisting steel plate with 3 fastening holes. Inch series. Original standard BS EN 4810-2017 in PDF full version. Additional info + preview on request

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Aerospace series. Flange couplings. Gasket seal with fluorocarbon seal on aluminium plate with 4 fastening holes. Inch series. Original standard BS EN 4811-2017 in PDF full version. Additional info + preview on request

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