needle-tubing assembly 针导管配套装置
cage and needle roller assembly 无套圈有保持架滚针轴承 ; 无套圈带保持架的滚针轴承
Needle Seat Assembly 针座组件
Cage And Needle Rolling Assembly 无套圈有保持架滚针轴承
needle valve and seat assembly 进油针阀及座总成
needle and bottom damping assembly 针与底部阻尼系统
Resin cartridge needle assembly can be changed in less than five minutes.
树脂滤芯组装针是可以改变的，不到五分钟。
The design proposal of a novel needle valve assembly is given.
提出了一种新颖的针阀偶件设计方案。
To facilitate their combination with needle roller and cage assemblies or the outer ring assembly of needle roller bearings, they have a lead-in at each side of the raceway.
为便于与滚针轴承的滚针和保持架组件或外圈组件结合，内圈在滚道两侧有引入槽。
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