| 摘要 |
The invention relates to a mine roof support device for use with a substantially one-inch diameter mine roof bore hole comprising: an elongated body having a first end, second end, an external surface, and a cross-sectional diameter less than the diameter of said mine roof bore hole; a coating positioned on said external surface of said elongated member, said coating forming a layer on said external surface; and a plurality of particulates received in said coating, wherein one or more of said plurality of particulates protrudes through said layer of said coating, forming a textured surface suitable for mixing resin. <IMAGE> |
