Beijing, June 28 (Youth.cn) - World's first commercial carbon fiber subway train "Carbon Star Express CETROVO 1.0" was officially launched in Qingdao on June 26th. 11% lighter than traditional subway train, it leads a green revolution of subway train. Developed and made by CRRC Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., the train has completed in-plant experience and will put into use within this year as a demonstrative project of line 1 of Qingdao subway. Photo/VCG