????? ???? Xiamen Yirong Hardware Co., Ltd. ?? ??? 2009? ??? ???? ???? ??? ??????? ???????? ???????? ????????? ?? ????? ????? ??????? (Caster Wheel). ??? ?????? ?? ????? ??????? ????? ?????? ?????? ??????? ?????? ????? ????? ?????? ?????? 30,000 ??? ????. ??? ????? ??????? ???????? ?????????? ??????? ??????? ?????? ????? ??????? ???? ??? ????? ??? ??????? ????? ?? ?????? ???????? ???? ???? ??????. ????? ??? ????? ????? ??????? ?? ???????? ??? ?????? ????????? ???????? ?????? ??? ??? ?????????. ?????? ?????? ?????? ??? ????? (OEM) ?????? ??? ??????? (ODM)? ???? ????? ???????? ??????? ?? ?????? ?????????? ?? ???? ????? ???????? ????? ?? ?????? ???? ????. ??????? ??? ????? ?????? ???? ?????? ??? ??????? ?????? ????? ?? ?? ???? ???? ??????? ???????. ???? ??????? ?????? ??? ???? ?????? ??????. ??? ???? ??? ?? ??????: ??????? ???????? ???????? ?????? ???????? ???????. ???????? ??? ??? ??????? ????? ????? ?????? ??????. ??? ????? ??? ?????? ?????? ??? ????????? ??? ?????? ?????? ????? ?????? ????? ????? ?????? ??????? ?????? ????? ?????? ???????.
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