Backfill is a very important technology that can be used to reduce the environmental footprints resulting from coal mining. The selection of proper filling materials is of great significance to the operation cost and the stability of the goaf. This paper investigated the feasibility of using the coal gangue as the main component of the filling paste so as to reuse the byproducts in co... https://www.bekindtopets.com/flash-deal-Disney-Lilo-and-Stitch-Character-Pattern-Apple-Pencil-1st-Gen-2017-Skin-p38235-top-mega/