太原重工：汽车吊车为本公司全资孙公司山西太重工程起重机有限公司负责生产制造

Group 1 - The core point of the article is that Taiyuan Heavy Industry (600169.SH) confirmed that the production of automobile cranes is managed by its wholly-owned subsidiary, Shanxi Taizhong Engineering Crane Co., Ltd [1][2] Group 2 - An investor inquired on the investor interaction platform whether the automobile cranes are produced by the group or the listed company [2]