BEIJING - A video clip on YouTube showing how a Chinese construction company built a hotel in six days has set off heated discussions over Chinese efficiency.

In the clip, a construction company that operates under the Broad Group took less than a week, or 136 hours of work, to erect and complete the outside decoration of a 15-story prefabricated building in June in Changsha, capital of Central China's Hunan province.

The clip, which was taken from the parent company's website, became an online sensation, attracting more than 3 million viewers and 1,100 comments in three months.