Excuse me: what is the meaning of heavy weight in the construction elevator?
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That's what it means to be heavyReally, I hope to have more good posts
With double cage for heavy, namely SCD200/200 series Is the two cages, each cage has a corresponding weight, the weight up and down in the elevator cage rise to energy conservation and reduce the reaction between the up and down, when you imagine front-rear door principle is about the same
