| 摘要 |
PURPOSE: A flume with indicated the center gravity is provided to prevent damage and safety accident due to falling of the flume in advance by constructing and transferring at the accurate center gravity with a tong of a crane. CONSTITUTION: A flume with indicated the center gravity(1) comprises projected parts(12) which are formed in the upper end of both sides of a body. Indication parts(2) for indicating the center gravity are formed in the center part of the both sides of the body or the center part of the projected parts to be recessed or projected. The indication parts are formed into various shaped symbols or the symbols with characters. |
