UNDERWAY CROSSING STAIRCASE UNIT von MINAEV YURIJ ,SU, LUPENKO YURIJ ,SU, SHEIN KONSTANTIN V,SU, MOLCHANOV YURIJ A,SU, PANOVKO BORIS L,SU, MONAKHOV VLADIMIR YA,SU

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SLIDING BEARING von VAKULA LEONID A,SU, CHEREDNICHENKO ANATOLIJ L,SU, LEVYJ LEONID N,SU, LUPENKO YURIJ A,SU

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