The sliding block is further provided with a metal buckling sheet of which the hook part can be buckled with a groove on the butting connector in order to fix the butting connector.
滑块上还进一步设置了金属扣片，金属扣片上的勾部可以与对接连接 器的凹槽相扣合以固定对接连接器。
The sliding block is further provided with a metal buckling sheet of which the hook part can be buckled with a groove on the butting connector in order to fix the butting connector.
滑块上还进一步设置了金属扣片，金属扣片上的勾部可以与对接连接 器的凹槽相扣合以固定对接连接器。
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