serrated lock washer 锯齿垫圈 internal teeth serrated lock washer 内锯齿锁紧垫圈 external teeth serrated lock washer 外锯齿锁紧垫圈 ..
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... serrated bore 细齿(花键)孔 serrated washer 锯齿垫圈 service 【名，动】①保养，维修，检修，维护②服务，使用，管理，操作③售后服务 ． ...
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短语
内锯齿锁紧垫圈
Serrated lock washers internal teeth
;
internal teeth serrated lock washer
;
star washers
;
Serratedlockw
外锯齿锁紧垫圈
Serrated lock washers external teeth
;
external teeth serrated lock washers
;
Serrated lock washers
锯齿锁紧弹性垫圈
Toothed lock washers
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