PROTECTING COMPOSITE HELMET von PETROVA EH.N, JAN'KOV V.P, CHUSOV S.JU, EGOROV A.I, GRIGORJAN V.A, KHROMUSHIN V.A, KLJUCHEV A.I, STEPANOV E.I

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PROTECTING HELMET von PETROVA EH.N, JAN'KOV V.P, CHUSOV S.JU, EGOROV A.I, GRIGORJAN V.A, KHROMUSHIN V.A, KLJUCHEV A.I, STEPANOV E.I

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