Pipeline fittings and parts. Nominal, test, and operating pressures. Series
Арматура и детали трубопроводов. Давления условные пробные и рабочие. Ряды. |
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REG 21Technical Investigation and Record-Keeping of … |
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Rosstat 60Statistical Control Over Environment and … |
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FAVT 287On the aproval of “procedure for the … |