?? ???? ??? ??????? ????? ??????? ????????? ??????? ?????? ??????. ???? ??? ?????? ?????? ????? ?????? ?????? ????? ????? ??? ???????.???? ??????? ????? ??? ???? ??????? ???????? ??? ?? ???? ??????? ???? ??? ???? ??? ???? ???? ?? ???????. ?????? ????? ????????? ???????.As a consequence of swift industry changes, miner prices may fluctuate several p