The crank mechanism is arranged on the lower part of the insulation rod, and comprises a crank type wrench and a wrench bracket.
导杆伸入弯头后通过软索与设置在绝缘杆内的拉杆固定相连；
The crank mechanism is arranged on the lower part of the insulation rod, and comprises a crank type wrench and a wrench bracket.
导杆伸入弯头后通过软索与设置在绝缘杆内的拉杆固定相连；
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