COMPOSITION FOR MAKING SHELL MOULDS AND CORES von FARBSHTEJN YU.G.,SU, SYSOEV YU.F.,SU, STRUPINSKIJ V.A.,SU, ZYKOV A.P.,SU, LIKHACHEV A.E.,SU, SHUVALOV M.G.,SU, KRUGLIKOV A.A.,SU

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