coupling with plain ends 无螺纹接箍
tubing with plain ends 平端油管 ; 内平油管
both ends plain 两端平 ; 两头平
plain square cut off ends 端部切平齐
Spherical plain bearings rod ends 杆端关节轴承
Spherical plain bearing rod ends 杆端关节轴承
BEPBoth Ends Plain 两端平
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