?????? ???

?? ????? ?????? ????? ????? (par sensor) ?????? ?????? ???? ????? ???? ??????????? ??????????? ???????? (Hunan Rika Electronic Tech Co.,Ltd). ????? ?????????? ???????? ????? ??????? ?????? ????? ???????? ???????. ????? ???? ????? ?????? ?????? ??????. ????? ?????? ???????? ????? ?????? ????? ??? ?????? ?????. ???????? ??? ???? ??? ??? ??? ?????? ?????? ??? ?????. ????? ?????? ??????.
???? ???? Rika Sensors ?????? ???????? ????? ???? ???? ???? ??? ?? ???????? ???????? ?????? ???????? ??????? ????????? ????????? ?????????? ???????? ??????? ????????? ??????? ??????? ????????? ??????? ??????.
???? ???? ???????? ?????? ???? ???? ????? ????? ??????? ????? ??????? ??????? ????? ????? ??????? ?????? ?? ?????? ?????? ????? ????????.