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Cranes Will Have What You Need To Know

1. lifting and command signals are generally several? Crane driver audio signal is made up of what?
Answer: lifting and command signals, which usually gesture, sound and semaphore three. Its drivers used by the audio signal is mainly made up of five simple and short audio.
2. the crane is a crane?
Answer: it's certainly not because the cable car is only a part of the crane.
3. crane safety feet is what?
Answer: the safe, which is mainly used in the car, and will have a limit switch on the main beam. When safety limit switch encountered later, it will power down the crane, which play a role in security.