Need help asap b) A po lished rotating-beam test specimen is made of AISI 4340 quenched and tempered (Q&T) steel...

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b) A po lished rotating-beam test specimen is made of AISI 4340 quenched and tempered (Q&T) steel and the heat treated steel

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丝兰 4 Se Sinte, Hase ue uuse uset po lis hes Ratatingbeam test h to mosity tue Mhe emduhcmte li 50, e se

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