FISHING APPARATUS BY USING SOIL AS NATURAL MINERAL AND BOB MANUFACTURE METHOD OF DIVING EQUIPMENT AND BOB STRUCTURE

摘要

PURPOSE: A bob manufacture method is provided for simply and strongly installing onto a fishing apparatus. CONSTITUTION: A bob manufacture method comprises the steps of:refining only a white sandy soil by dividing the grinded soil with a dust collecting hopper after grinding a collected soil with a grinder; drying for making a ceramic powder for a bob process by adding up a pigment; molding for molding the ceramic bob(100); sintering for increasing the intensity; polishing for flattening a surface by polishing the surface of the ceramic bob with a polisher.