The rig tongs hinge pin, latch lock and springs must be inspected at regular intervals and changed out if excessive wear is encountered.
必须定期检查大钳的折页销子，扣合头和弹簧，如果出现磨损超标，就更换。
The utility model relates to a quick-binding device which is composed of a latch lock, a lock rack provided with a belt-tooth part, and a rotary shaft fixed on the lock rack.
本实用新型由碰锁及具有带齿部分的锁架和固定在锁架上的回转轴组成。
The utility model relates to a quick-binding device which is composed of a latch lock, a lock rack provided with a belt-tooth part, and a rotary shaft fixed on the lock rack.
本实用新型由碰锁及具有带齿部分的锁架和固定在锁架上的回转轴组成。
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