| 摘要 |
PURPOSE: A twist material for construction and civil engineering is provided to improve adhesion force and fixing force by securely driving the material into a structure or underground. CONSTITUTION: A twist material for construction and civil engineering comprises a twist bar(50). The twist bar is twisted and formed in a straight line shape. The twist bar comprises twist wings(54) and twist grooves(56). The twist wings are formed like a blade of a drill. The twist grooves are formed like a draw-out groove of the drill, and filled with an adhesion material, such as soil.
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