俞立虎

Derrick crane structure and has its crane

俞立虎, 吴志纯, 李建华, 2013 .

Tower crane and adjusting method for trimming moment of tower crane

张鹏, 李建华, 俞立虎, 2013 .

Grabbing rod structure of crane, and crane with grabbing rod structure

俞立虎, 吴志纯, 李建华, 2013 .

Balance arm and tower crane

钱建军, 俞立虎, 李建华, 2012 .