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???? ??????????? ????????????? ??????? ????????? ?????????????? ???????? ??????????????????? ????? ????????????????. ???? ??????????? ????????????? ??????????????? ?????? ???? ??????????? ????????????? ?????????? ?????? ?????. ???? ????? ????

??????? ???? ??????? ???????????? ?????????????? ?????????? ????? ????? ?????????, ???? ??????????? ??????????? ???????? ????????????????? ????????. ???? ??????????? ????????????? ??????, ???? ??????????? ???????????????? ??????? ???????????????. ???? ??????????? ????????? ??????????????????????????, ??? ???? ??????????? ??????? ?????????? ?????? ???? ???????????????? ?????????????????????????, ??????????? ???? ???? ??????????? ????????????? ??? ?????????? ????????. ??? ???? ??????????? ????????????? ??? ???????? ??????? ???????????????, ?????? ??? ???????????? ?????????? ???????????? ???????????.

?????????? ??????????? ??????????? ????? ?????? ???????? ????? ????????. ????? ???????, ?????????? ??????????? ????????????? ??????? ????????? ????? ???????? ??????? ?????????, ??????? ? de?erl???. ????, ?????????? ??????????? ??????????? ???????????? ?????? ????? ?????? ????? ?????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ???????? ????????. ??????? ??? ??? ?????????? ??????????? ????????? ?????? ???? ?????????????????????? ??????? ??????????? ????? ???? ???????? ?????, ?????????? ??????????? ????????????? ??????? ???????? ??????????? ????. ?????? ??????? ?????????, ??? ?????????? ??????????? ????????????? ???????? ??????? ?????? ?????????.

??????, ????? ??? ????????????????? ?????, ???? ??????????? ????????????? ??????????????? ?????????? ????????? ???? ??????????? ????????? ??????? ??????????. ????, ????? ???? ??????????? ??????????? ??????????, ???????? ????????????? ???? ?????????? ?????????? ??????? ????????. ????????????? ?????????? ??????? ?????????, ?????? ???????? ????? ????????. ??????, ?????? ??????? ??? ?????????? ???? ??????????? ????????????? ???? ??????????? ???????? ??????. ????, ???????? ????????? ???????????????, ????????? ???????? ?????? ????????? ???????? ?????????? ????????.

Although the sand making equipment made of ??????? ????????? alloy is very good in the industry, in the process of ??????? ?????????, whether it is straight line of ??????? ?????????, throwing head of ??????? ????????? or hopper lining of ??????? ????????? Rings are very important production parts of ??????? ?????????s, and the degree of wear is quite high. Maintenance work should be done from the beginning of equipment use, in order to reduce wear.