山東凱美瑞軸承有限公司

???????????????NJ203ECM??У?NJ203ECM??е?????????????17mm?? ??40mm?????12mm??????0.066KG.NJ203ECM?????????????????????? ???????????????????????????????С??????????????????????????????????NJ203ECM??????????????????????????????15553276400 qq:3229345378 ?????????????????????NJ202ECM?????????С?NU202ECM????????? ?С?N203ECM?????????С?NJ203ECM?????????С?NU203ECM?????????? ??NUP203ECM?????????? ????????е??????????е????????ECM??EM???????????? 1.??????????????????????????????????????????????????????? ?????е?????????????25%~35%?? 2.?????????????????????????????????????????????豸??????? ????????????????????????????????????????????????????????????????????????????????????????????? 3.???????????????????в???????5??????????????????????? ??????4????в????