Who are the tenors of the three national singing styles in China?

The tenors of the three national singing methods must be representative. Li Shuangjiang is one of the oldest folk singers. He has a unique voice and enjoys the treatment of the military. He must be one of them. David Jiang's new singing style, which dared to interpret the national singing style, was not accepted at first, and was later recognized as the best singer in China. Now he immigrated to Canada, and David Jiang is one of them. There is also Yan Weiwen, who has a loud voice and has different strengths. He has a touch of bel canto in national singing, and this unique voice can be sung by Yan Weiwen! Liu Bin, who said upstairs, was born in an opera. Only the one who is a soldier in our country knows his loud voice. He is not a big singer, but a military singer at best. Yu Junjian has his own unique side, but his voice is blunt and the atmosphere of national singing is insufficient. But he also has a unique and delicate side of national singing, but he is still a bit far-fetched among the three tenors.