I-NA滚-针轴承185内圈IR40X4X2m05内径40m外径45mm厚度20mm

220I-N-A滚针轴承内IR40X4圈5X20m内径40mm外径45m厚m度20m

德国INA针轴滚承RNA408-2RXSR-L内圈IR40X4WQP8X23-IS91-OF-XL等

戴尔Precision 7770 7780 IDE70 IR屏线40pin 03X4KY DC02C011W00