螺纹护环 pipethread protector; {工} thread protector; 螺纹环规 ring screw gauge; ring thread gauge; screw ring gauge; thread ring gauge; 螺纹回转法 thread-whirling; ..
基于6个网页-相关网页
screw ring gauge 螺纹环规
screw thread ring gauge 通端螺纹环规
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