滚珠丝杆副SFU1204----SFU8010系列，精度等级C7级，含单螺母一个，可根据客户要求加工两端！SFU1204SFU1605SFU1610SFU2005SFU2505SFU2510SFU3205SFU3210SFU4005SFU4010SFU5010SFU6310SFU8010)