Technology/techniques
1. Stone mold making shall be carried out using the following traditional techniques or methods, employing tools such as chisels, oars, koyasuke, double-edged chisels, bishan, and similar tools in the main process:
(1) When marking out raw or rough stone, the basic technique is to use a curved tool to draw the boundary lines of the carved areas, either by "square marking" or "chamfering," and the knots should be removed by "knot carving."
(2) After marking the lines, shape the surface by "rough cutting", "medium cutting", "edge trimming", "corner rounding", "single-edged trimming", or "smashing".
(3) The carving shall be done by "relief carving," "sunken carving," "openwork carving," "raised carving," or "relief carving."
(4) The finish shall be a chisel finish, a smashed finish, a hammered finish, a smeared finish, or a smudge-removed finish.
2. When joining, mortise and tenon joints shall be used, except for the top and bottom of the firebox.










