51吃瓜

Precision stamping parts are produced by placing metal sheets or strips on a punch press, and using the mold on the punch press to punch them along a curved shape, thereby stamping the metal sheets into parts with certain external dimensions and shapes. ??? специальный ??????????????? ??? ??? ???? ??? ?????????? ????????, ??? ??????? ?????? ??? ????????????? ??????? ??? ?????????? ????????? ???? ??? ???????????????, ??? ?????? ?????????? ???????????? ???? ??? ????????????? ???????? ??? ?????Principle ???? ????????????????????????? ??????? ????? ?????? ???????? ?? ?????????, ?????, ?????, ??? ?????????, ??? ????????? ?? ???????? ???? ??????????????? ????????, ????? ??? ???????? ?? ?? ???????????? ???? ????????? ??????, ??? ????????? ???? ?????? ??зайн?, ??? ??? ???????? ???? ????????? ???? ????? ????vlvl???? ??? ???????????????? ??? ??????? ??? ??????????, ????????????? ?????????????? ??????? ????? ?? ???????? ???? ??? ????????? ???????????? ??????????? ?? ?? ????????? ??? ????????????? ???? ???????? ????? ?????? ??????princip ??? ?????????? ???????????? ??? ????????????? ????????????????????, ?????????????? ??? ????? ????????, ????????????????????? ??? ????? ????????????, ???