helix spring insert 双螺旋弹簧
spiral spring insert 螺旋线圈
spring lock insert 弹簧固定嵌件
spring seat insert 弹簧座垫块
Rooster Creek is spewing out of the spring insert the sword, like spit spring, cast chain, spring, day Serve as an interpreter and other drops a perennial river.
金鸡河是由喷涌而出的剑插泉、象吐泉、铸链泉、天井泉等汇集而成的一条常年性的河流。
Protect ends with capped self-locking washers incorporating a spring steel insert to ensure permanent retention of cap in exposed locations.
对外露端部的保护，可采用自锁螺帽加以弹簧垫，以确保螺帽持续牢固的预紧力。
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