Abstract: A design of a structure for plastic casing to cover a door frame, particularly an improved structure and installation method for the replacement of the casing of the door. The structure mainly uses a front slat and a rear slat to fit together so as to cover up the outer layer of the existing old casing on the wall. The width of the structure can be adjusted to the width of the old casing. Nails can be used to feed through the holding slat for positioning and securing, a plastic cap can be used to cover the ends of the front and the rear slats so as to form a completed ornamental casing, thus saving the time and manpower to remove the old casing as well as preventing the damage from the removal of the old casing. In addition, the decorative assembly gives a strong-binding, secure and practical structure of a plastic casing for a door frame.

Abstract: A vinyl walkway paver, particularly the one used as a paving stone with grass contained therein. The paver can be integrally formed to have a surface with a plurality of ridged bodies which are different in sizes. The center of the paver is a recessed portion, the four sides of the recessed portion form a hollow frame, the corners joining the diagonals of the frame are provided with corner holes and corner blocks. By such configuration, a plurality of pavers can be laid on the walkway, the central recessed portion thereof can be filled up with soil for planting grass. Moreover, the interior wall of the hollow frame can be provided with a plurality of ribs to form a suitable rough surface for strengthening the structure of the paver. Expansible materials such as polystyrene can also be filled inside the frame to give a better bonding structure.