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Energy saving elevator Lead building a low-carbon future

In recent years, the continuous development of China’s real estate industry, building energy consumption has been able for the first energy consumption of China’s society, accounting for about 30% of the total social energy consumption in china. Reduce building energy consumption has become China’s energy-saving…

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The birth of the elevator

The elevator was born before 1150 In 1854, USA New York Crystal Palace exhibition, Eliza, Graves. Otis (Elisha Graves OTIS) Mr demonstrates his safety. He stood in the lift platform, cut the rope, platform only dropped a few inches safe stop. Up in the warm…

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