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GOST 5.924-71
GOST 5.924-71
Intermediate stations for train control tower and (railway) junction connection types ППТ-66Д and ППТ-66П. Quality requirements of certified products
Price: $394.02
OST 4-218.005-84
OST 4-218.005-84
intercommunication equipment for general use wire communication. General Technical requirements and control methods.
OST 4-4652.02-93
OST 4-4652.02-93
Equipment of internal communication and switching on the basis of optical-fibre transmission systems. General technical requirements.
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