Abstract: The present invention discloses a 3D printing powder produced by laying a gypsum powder; coating a water-soluble resin powder on the gypsum powder, and the water-soluble resin powder forming a colloid in water; pressing the water-soluble resin powder and the gypsum powder flatly to form a mixed layer; and adding water to the mixed layer. The mixed layer formed by using a water-soluble resin powder such as oxazoline resin, polyoxyethylene, or polyvinyl alcohol and pressing the water-soluble resin powder with the gypsum powder, so that the structural strength of 3D printing finished goods can be improved for several times, and the finished goods will not be deformed by external forces or smudged by colorants easily, and the finished goods can have smooth surfaces.

Abstract: A brick assembly includes multiple bricks and each brick has at least one rib and at least one slot respectively on two sides thereof so as to be connected side-by-side. Each brick includes multiple passages defined through the top surface and the bottom surface thereof and multiple first recesses are defined in the top surface and multiple second recesses are defined in the bottom surface of the brick. Each of the first and second recesses communicates with two passages. A U-shaped reinforcement bar extends through the two passages and the connection portion connected between two ends of the two legs is engaged with the second recess and a plate is engaged with the first recess. The two legs extend through the plate and are securely connected with two nuts.

Abstract: A brick assembly includes multiple bricks and each brick has at least one rib and at least one slot respectively on two sides thereof so as to be connected side-by-side. Each brick includes multiple passages defined through the top surface and the bottom surface thereof and multiple first recesses are defined in the top surface and multiple second recesses are defined in the bottom surface of the brick. Each of the first and second recesses communicates with two passages. A U-shaped reinforcement bar extends through the two passages and the connection portion connected between two ends of the two legs is engaged with the second recess and a plate is engaged with the first recess. The two legs extend through the plate and are securely connected with two nuts.

Abstract: The present invention is to provide a “combinational energy-saving apparatus for heating pot” comprising a pair of mounting hoops and two or at least two energy-saving slats, wherein said mounting hoop is adjustable in dimension to fit various heating pots of different diameters while said energy-saving slat with heat insulating function is to be fixed on the mounting hoop in encompassment manner. Thereby, the thermal energy from the heating device/source is converged to the heating pot with less possibility in leakage so that not only the cooking time can be shortened but also the energy-saving effect can be achieved.