| 摘要 |
<p>The present invention relates to a hollow paper pipe for a slab. The hollow paper pipe is characterized by including cylindrical paper pipe members made of paper; a paper pipe joining unit including the paper pipe members having an identical length, vertically stood, and adjoining each other in the horizontal direction; a horizontal plate member arranged at least one on the top and bottom of the paper pipe joining unit; and a lateral cover member covering the whole lateral surface of the paper pipe joining unit. According to the present invention, the hollow paper pipe, which is light and eco-friendly, obtains excellent processability, excellent workability, and economic efficiency by using paper pipes. In addition, the present invention facilitates a manufacture of the hollow pipe having the desirable height and length.</p> |
