DEVICE FOR REPLACING ROLLERS OF BELT CONVEYOR von SHMATOV IVAN N,SU, PROKOPENKO STANISLAV P,SU, ZHURAKOV VALERIJ D,SU, ZALKIND ALEKSANDR S,SU, ZEVIN SEMEN L,SU, MAKSIMOV VLADIMIR I,SU, STRINYUK GENNADIJ V,SU

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