in a dance training class in Ji'nan, with a strong rhythm of DJ music, in all kinds of tone screams, girls in hot pants, exposed navel, on the staggered steel tubes, up and down, fling around. And collectively display sexy legs. They are cadets of steel tube dancers, raising their hips, legs and waist, and hiding tears and strength behind each movement. More than half of the students studying steel tube dance come from the countryside. They are hard to practice the steel tube dance. After 3 months of study, they are qualified for the steel tube dance performance. They return to their hometown or to the three line city to perform the steel pipe dance performance. The monthly income is close to 10000 yuan.