The needle roller bearings without flanges are separable, i. E. The outer ring, the needle roller and cage assembly and the inner ring can all be mounted separately.
不带法兰的滚针轴承是可分离的，即外圈、滚针和保持架组件以及内圈都可分别安装。
The main products are Diamond Needle Files, Flat Files, Mounted Points, Wheels, Cutting Blades, Saw Blades, Mental Pen, Natural Diamond Wheel Blade, Diamond Grinding Paste etc.
主要产品有金刚石什锦锉，大扳锉，磨针，磨头，砂轮，切割片，锯片，金属笔，天然金刚石砂轮刀，研磨膏等。
In concrete, this invention comprises a sensor unit having a holder and a blood sensor mounted to the holder and a needle unit having a slidable puncturing needle.
具体而言，本发明提供传感器组件，该传感器组件包括：传感器单元，其包含支架和安装在所述支架上的血液传感器；
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