STB PDF

Original standard VDI 3491 Blatt-4 2018-03 in PDF full version. Additional info + preview on request

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Original standard VDI 3491 Blatt-5 1980-12 in PDF full version. Additional info + preview on request

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Original standard VDI 3491 Blatt-5 2021-09 in PDF full version. Additional info + preview on request

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Original standard VDI 3491 Blatt-5 E 2018-12 in PDF full version. Additional info + preview on request

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Original standard VDI 3491 Blatt-6 1980-12 in PDF full version. Additional info + preview on request

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Original standard VDI 3491 Blatt-6 E 2021-01 in PDF full version. Additional info + preview on request

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