Turkmenistan standards PDF

Original standard API Publ 4346-1981 in PDF full version. Additional info + preview on request

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Original standard API Publ 4365-1983 in PDF full version. Additional info + preview on request

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Original standard API Publ 4390-1985 in PDF full version. Additional info + preview on request

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Original standard API Publ 4401-1985 in PDF full version. Additional info + preview on request

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Original standard API Publ 4410-1985 in PDF full version. Additional info + preview on request

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Original standard API Publ 4452-1987 in PDF full version. Additional info + preview on request

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